Trong c\u00e1c c\u00e1ch soi c\u1ea7u l\u00f4 \u0111\u1ec1 th\u00ec c\u00f3 1 c\u00e1ch \u0111\u00e1nh r\u1ea5t hay \u0111\u01b0\u1ee3c c\u00e1c d\u00e2n ch\u01a1i d\u00e0n l\u00f4 \u0111\u1ec1 \u0111\u1eb7c bi\u1ec7t d\u00e0n l\u00f4 tr\u01b0\u1ee3t \u00e1p d\u1ee5ng. \u0110\u00f3 l\u00e0 \u0111\u00e1nh theo c\u00e1c b\u1ed9 s\u1ed1 \u0111\u1ec1 hay c\u00f2n g\u1ecdi l\u00e0 t\u1ed5ng \u0111\u1ec1. C\u00e1ch \u0111\u00e1nh theo t\u1ed5ng \u0111\u1ec1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho t\u1ed5ng h\u1ee3p \u0111\u1ec1 mi\u1ec1n B\u1eafc l\u00e0 ch\u1ee7 y\u1ebfu. Do \u0111\u00f3 anh em c\u00f3 th\u1ec3 coi nh\u01b0 b\u00e0i vi\u1ebft n\u00e0y h\u01b0\u1edbng d\u1eabn c\u00e1ch \u0111\u00e1nh v\u00e0 th\u1ed1ng k\u00ea t\u1ed5ng l\u00f4 \u0111\u1ec1 XSMB, XSMT, XSMN. Soi C\u1ea7u 3 Mi\u1ec1n xin \u0111\u01b0\u1ee3c g\u1eedi t\u1edbi cho anh em b\u00e0i vi\u1ebft chi ti\u1ebft v\u1ec1 t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 c\u00f9ng v\u1edbi c\u00e1ch b\u1eaft s\u1ed1 t\u1ed5ng b\u1ed9 \u0111\u1ec1 \u2013 1 trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u ch\u00ednh x\u00e1c 100 ph\u1ed5 bi\u1ebfn nh\u1ea5t, \u00edt t\u1ed1n th\u1eddi gian suy ngh\u0129, t\u00ednh to\u00e1n m\u00e0 t\u1ec9 l\u1ec7 v\u1ec1 t\u01b0\u01a1ng \u0111\u1ed1i cao.<\/p>\n
<\/span>B\u1ea3ng s\u1ed1 \u0111\u1ec1<\/h2>\nB\u1ea3ng s\u1ed1 \u0111\u1ec1 hay c\u00f2n g\u1ecdi l\u00e0 C\u00e1c b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hay B\u1ea3ng s\u1ed1 \u0111\u1ec1\u00a0l\u00e0 nh\u1eefng ghi ch\u00e9p v\u1ec1 c\u00e1c b\u1ed9 s\u1ed1 \u0111\u1ec1 c\u00f3 chung m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m khi\u1ebfn ng\u01b0\u1eddi ta tin r\u1eb1ng ch\u00fang s\u1ebd v\u1ec1 c\u00f9ng nhau. Trong l\u00f4 \u0111\u1ec1 c\u00f3 r\u1ea5t nhi\u1ec1u b\u1ed9 s\u1ed1. Ch\u00fang ta c\u00f3 th\u1ec3 li\u1ec7t k\u00ea c\u00e1c b\u1ed9 \u0111\u1ec1 x\u1ed5 s\u1ed1 d\u1ef1a tr\u00ean nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m nh\u01b0:<\/p>\n
\n- Thu\u1ed9c b\u1ed9 12 con gi\u00e1p<\/li>\n
- C\u00f3 t\u1ed5ng \u0111\u1ec1 gi\u1ed1ng nhau<\/li>\n
- B\u1ed9 s\u1ed1 d\u1ef1a theo b\u00f3ng \u00e2m d\u01b0\u01a1ng ng\u0169 h\u00e0nh<\/li>\n<\/ul>\n
D\u01b0\u1edbi \u0111\u00e2y ch\u00fang ta s\u1ebd c\u00f9ng \u0111i v\u00e0o t\u00ecm hi\u1ec3u t\u1eebng b\u1ed9 s\u1ed1 v\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00fang.<\/p>\n
<\/span>B\u1ed9 15 s\u1ed1<\/h3>\n\u0110\u00e2y l\u00e0 15 b\u1ed9 s\u1ed1 c\u01a1 b\u1ea3n trong l\u00f4 \u0111\u1ec1. Tr\u01b0\u1edbc h\u1ebft, c\u00e1c b\u1ed9 s\u1ed1 trong s\u1ed1 \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c lu\u1eadn d\u1ef1a theo quy t\u1eafc c\u1eb7p l\u1ed9n v\u00e0 b\u00f3ng d\u01b0\u01a1ng. Nh\u01b0 ch\u00fang ta c\u0169ng \u0111\u00e3 bi\u1ebft, \u0111\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c b\u00f3ng d\u01b0\u01a1ng c\u1ee7a s\u1ed1, ta c\u1ed9ng th\u00eam v\u00e0o s\u1ed1 \u0111\u00f3 05, 50 ho\u1eb7c 55. C\u00f2n c\u00e1c b\u1ed9 s\u1ed1 l\u1ed9n th\u00ec c\u00f3 d\u1ea1ng AB \u2013 BA.<\/p>\n
V\u00ed d\u1ee5 nh\u01b0 B\u1ed9 s\u1ed1 01: Ta c\u00f3 s\u1ed1 l\u1ed9n c\u1ee7a n\u00f3 l\u00e0 10. S\u1ed1 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a n\u00f3 l\u00e0 01, 10, 06, 60, 51, 15, 56, 65.<\/p>\n
D\u1ef1a theo quy t\u1eafc b\u00f3ng d\u01b0\u01a1ng v\u00e0 b\u1ed9 s\u1ed1 l\u1ed9n n\u00e0y, ta c\u00f3 c\u00e1c b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 x\u1ebfp theo b\u1ed9 s\u1ed1 nh\u01b0 sau:<\/p>\n
\n\n\nB\u1ed9 s\u1ed1<\/strong><\/td>\nG\u1ed3m c\u00f3 c\u00e1c b\u1ed9 \u0111\u1ec1<\/strong><\/td>\n<\/tr>\n\n01<\/td>\n 01, 10, 06, 60, 51, 15, 56, 65<\/td>\n<\/tr>\n \n02<\/td>\n 02, 20, 07, 70, 52, 25, 57, 75<\/td>\n<\/tr>\n \n03<\/td>\n 03, 30, 08, 80, 53, 35, 58, 85<\/td>\n<\/tr>\n \n04<\/td>\n 04, 40, 09, 90, 54, 45, 59, 95<\/td>\n<\/tr>\n \n12<\/td>\n 12, 21, 17, 71, 62, 26, 67, 76<\/td>\n<\/tr>\n \n13<\/td>\n 13, 31, 18, 81, 63, 36, 68, 86<\/td>\n<\/tr>\n \n14<\/td>\n 14, 41, 19, 91, 64, 46, 69, 96<\/td>\n<\/tr>\n \n23<\/td>\n 23, 32, 28, 82, 73, 37, 78, 87<\/td>\n<\/tr>\n \n24<\/td>\n 24, 42, 29, 92, 74, 47, 79, 97<\/td>\n<\/tr>\n \n34<\/td>\n 34, 43, 39, 93, 84, 48, 89, 98<\/td>\n<\/tr>\n \n00<\/td>\n 00, 55, 05, 50<\/td>\n<\/tr>\n \n11<\/td>\n 11, 66, 16, 61<\/td>\n<\/tr>\n \n22<\/td>\n 22, 77, 27, 72<\/td>\n<\/tr>\n \n33<\/td>\n 33, 88, 38, 83<\/td>\n<\/tr>\n \n44<\/td>\n 44, 99, 49, 94<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>B\u1ed9 s\u1ed1 12 con gi\u00e1p<\/h3>\n\u1ede c\u00e1c b\u1ed9 \u0111\u1ec1 12 con gi\u00e1p n\u00e0y, ch\u00fang ta m\u1eb7c \u0111\u1ecbnh m\u1ed7i m\u1ed9t con gi\u00e1p s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi 1 con s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5 nh\u01b0 tu\u1ed5i T\u00fd l\u00e0 b\u1ed9 s\u1ed1 00. Sau \u0111\u00f3 ti\u1ebfn h\u00e0nh c\u1ed9ng th\u00eam 12 \u0111\u01a1n v\u1ecb v\u00e0o m\u1ed7i s\u1ed1 c\u1ed1 \u0111\u1ecbnh \u0111\u00f3 t\u1eeb \u0111\u00f3 s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t b\u1ed9 s\u1ed1 ho\u00e0n ch\u1ec9nh.<\/p>\n
<\/span>T\u1ed5ng \u0111\u1ec1<\/h2>\nT\u1ed5ng \u0111\u1ec1 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t ph\u00e9p t\u00ednh c\u1ed9ng 2 con s\u1ed1 trong 1 c\u1eb7p s\u1ed1. Ch\u00ednh v\u00ec th\u1ebf khi n\u00f3i t\u1edbi t\u1ed5ng b\u1ea3ng \u0111\u1ec1 ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 b\u1ed9 s\u1ed1 \u0111\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u1ef1a tr\u00ean ph\u00e9p t\u00ednh t\u1ed5ng. \u0110\u1ec3 xem th\u1ed1ng k\u00ea t\u1ed5ng \u0111\u1ec1 h\u00f4m nay, anh em c\u00f3 th\u1ec3 ch\u1ecdn xem t\u1ed5ng \u0111\u1ec1 th\u00e1ng, t\u1ed5ng \u0111\u1ec1 tu\u1ea7n, t\u1ed5ng \u0111\u1ec1 c\u1ea3 n\u0103m. V\u1ec1 ph\u1ea7n c\u00e1ch t\u00ednh ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n
Th\u1ed1ng k\u00ea c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ch\u00ednh x\u00e1c. T\u1ed5ng h\u1ee3p b\u1ea3ng \u0111\u1ec1 hay v\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f3 chung m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0 t\u1ed5ng hai ch\u1eef s\u1ed1 c\u1ee7a ch\u00fang lu\u00f4n lu\u00f4n b\u1eb1ng nhau. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 c\u00e1c \u0111\u00e0n anh \u0111\u00e0n ch\u1ecb \u0111i tr\u01b0\u1edbc th\u1ed1ng k\u00ea ra b\u00ed k\u00edp n\u00e0y.<\/p>\n
B\u1ea3ng t\u1ed5ng h\u1ee3p s\u1ed1 h\u1ee3p s\u1ed1 \u0111\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f2n \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ed5ng d\u00e0n \u0111\u1ec1. T\u1ee9c l\u00e0 th\u1ed1ng k\u00ea t\u1ed5ng h\u1ee3p c\u00e1c d\u00e0n \u0111\u1ec1 chung t\u1ed5ng. M\u1ed7i t\u1ed5ng \u0111\u1ec1 c\u00f3 10 con, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ec1 t\u1ed5ng 6 c\u00f3 10 con c\u1ed9ng l\u1ea1i t\u1ed5ng b\u1eb1ng 6 ho\u1eb7c 16. Ch\u00fang ta c\u00f3 t\u1ed5ng b\u1ea3ng l\u00f4 \u0111\u1ec1 nh\u01b0 sau:<\/p>\n
<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 nh\u1ecf<\/h3>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng 0: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 0 ho\u1eb7c 10
\n00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 1: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 1 ho\u1eb7c 11
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 2: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 2 ho\u1eb7c 12
\n20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11<\/li>\n - T\u1ed5ng \u0111\u1ec1 3: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 3 ho\u1eb7c 13
\n03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 4: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 4 ho\u1eb7c 14
\n04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77<\/li>\n<\/ol>\n<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 to<\/h3>\n\n- B\u1ed9 \u0111\u1ec1 t\u1ed5ng 5: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 5 ho\u1eb7c 15
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n - T\u1ed5ng \u0111\u1ec1 6: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 6 ho\u1eb7c 16
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n - T\u1ed5ng \u0111\u1ec1 7: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 7 ho\u1eb7c 17
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n - T\u1ed5ng \u0111\u1ec1 8: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 8 ho\u1eb7c 18
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 9: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 9
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\nH\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
D\u01b0\u1edbi \u0111\u00e2y ch\u00fang ta s\u1ebd c\u00f9ng \u0111i v\u00e0o t\u00ecm hi\u1ec3u t\u1eebng b\u1ed9 s\u1ed1 v\u00e0 y\u1ebfu t\u1ed1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00fang.<\/p>\n
<\/span>B\u1ed9 15 s\u1ed1<\/h3>\n\u0110\u00e2y l\u00e0 15 b\u1ed9 s\u1ed1 c\u01a1 b\u1ea3n trong l\u00f4 \u0111\u1ec1. Tr\u01b0\u1edbc h\u1ebft, c\u00e1c b\u1ed9 s\u1ed1 trong s\u1ed1 \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c lu\u1eadn d\u1ef1a theo quy t\u1eafc c\u1eb7p l\u1ed9n v\u00e0 b\u00f3ng d\u01b0\u01a1ng. Nh\u01b0 ch\u00fang ta c\u0169ng \u0111\u00e3 bi\u1ebft, \u0111\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c b\u00f3ng d\u01b0\u01a1ng c\u1ee7a s\u1ed1, ta c\u1ed9ng th\u00eam v\u00e0o s\u1ed1 \u0111\u00f3 05, 50 ho\u1eb7c 55. C\u00f2n c\u00e1c b\u1ed9 s\u1ed1 l\u1ed9n th\u00ec c\u00f3 d\u1ea1ng AB \u2013 BA.<\/p>\n
V\u00ed d\u1ee5 nh\u01b0 B\u1ed9 s\u1ed1 01: Ta c\u00f3 s\u1ed1 l\u1ed9n c\u1ee7a n\u00f3 l\u00e0 10. S\u1ed1 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a n\u00f3 l\u00e0 01, 10, 06, 60, 51, 15, 56, 65.<\/p>\n
D\u1ef1a theo quy t\u1eafc b\u00f3ng d\u01b0\u01a1ng v\u00e0 b\u1ed9 s\u1ed1 l\u1ed9n n\u00e0y, ta c\u00f3 c\u00e1c b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 x\u1ebfp theo b\u1ed9 s\u1ed1 nh\u01b0 sau:<\/p>\n
\n\n\nB\u1ed9 s\u1ed1<\/strong><\/td>\nG\u1ed3m c\u00f3 c\u00e1c b\u1ed9 \u0111\u1ec1<\/strong><\/td>\n<\/tr>\n\n01<\/td>\n 01, 10, 06, 60, 51, 15, 56, 65<\/td>\n<\/tr>\n \n02<\/td>\n 02, 20, 07, 70, 52, 25, 57, 75<\/td>\n<\/tr>\n \n03<\/td>\n 03, 30, 08, 80, 53, 35, 58, 85<\/td>\n<\/tr>\n \n04<\/td>\n 04, 40, 09, 90, 54, 45, 59, 95<\/td>\n<\/tr>\n \n12<\/td>\n 12, 21, 17, 71, 62, 26, 67, 76<\/td>\n<\/tr>\n \n13<\/td>\n 13, 31, 18, 81, 63, 36, 68, 86<\/td>\n<\/tr>\n \n14<\/td>\n 14, 41, 19, 91, 64, 46, 69, 96<\/td>\n<\/tr>\n \n23<\/td>\n 23, 32, 28, 82, 73, 37, 78, 87<\/td>\n<\/tr>\n \n24<\/td>\n 24, 42, 29, 92, 74, 47, 79, 97<\/td>\n<\/tr>\n \n34<\/td>\n 34, 43, 39, 93, 84, 48, 89, 98<\/td>\n<\/tr>\n \n00<\/td>\n 00, 55, 05, 50<\/td>\n<\/tr>\n \n11<\/td>\n 11, 66, 16, 61<\/td>\n<\/tr>\n \n22<\/td>\n 22, 77, 27, 72<\/td>\n<\/tr>\n \n33<\/td>\n 33, 88, 38, 83<\/td>\n<\/tr>\n \n44<\/td>\n 44, 99, 49, 94<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>B\u1ed9 s\u1ed1 12 con gi\u00e1p<\/h3>\n\u1ede c\u00e1c b\u1ed9 \u0111\u1ec1 12 con gi\u00e1p n\u00e0y, ch\u00fang ta m\u1eb7c \u0111\u1ecbnh m\u1ed7i m\u1ed9t con gi\u00e1p s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi 1 con s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5 nh\u01b0 tu\u1ed5i T\u00fd l\u00e0 b\u1ed9 s\u1ed1 00. Sau \u0111\u00f3 ti\u1ebfn h\u00e0nh c\u1ed9ng th\u00eam 12 \u0111\u01a1n v\u1ecb v\u00e0o m\u1ed7i s\u1ed1 c\u1ed1 \u0111\u1ecbnh \u0111\u00f3 t\u1eeb \u0111\u00f3 s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t b\u1ed9 s\u1ed1 ho\u00e0n ch\u1ec9nh.<\/p>\n
<\/span>T\u1ed5ng \u0111\u1ec1<\/h2>\nT\u1ed5ng \u0111\u1ec1 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t ph\u00e9p t\u00ednh c\u1ed9ng 2 con s\u1ed1 trong 1 c\u1eb7p s\u1ed1. Ch\u00ednh v\u00ec th\u1ebf khi n\u00f3i t\u1edbi t\u1ed5ng b\u1ea3ng \u0111\u1ec1 ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 b\u1ed9 s\u1ed1 \u0111\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u1ef1a tr\u00ean ph\u00e9p t\u00ednh t\u1ed5ng. \u0110\u1ec3 xem th\u1ed1ng k\u00ea t\u1ed5ng \u0111\u1ec1 h\u00f4m nay, anh em c\u00f3 th\u1ec3 ch\u1ecdn xem t\u1ed5ng \u0111\u1ec1 th\u00e1ng, t\u1ed5ng \u0111\u1ec1 tu\u1ea7n, t\u1ed5ng \u0111\u1ec1 c\u1ea3 n\u0103m. V\u1ec1 ph\u1ea7n c\u00e1ch t\u00ednh ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n
Th\u1ed1ng k\u00ea c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ch\u00ednh x\u00e1c. T\u1ed5ng h\u1ee3p b\u1ea3ng \u0111\u1ec1 hay v\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f3 chung m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0 t\u1ed5ng hai ch\u1eef s\u1ed1 c\u1ee7a ch\u00fang lu\u00f4n lu\u00f4n b\u1eb1ng nhau. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 c\u00e1c \u0111\u00e0n anh \u0111\u00e0n ch\u1ecb \u0111i tr\u01b0\u1edbc th\u1ed1ng k\u00ea ra b\u00ed k\u00edp n\u00e0y.<\/p>\n
B\u1ea3ng t\u1ed5ng h\u1ee3p s\u1ed1 h\u1ee3p s\u1ed1 \u0111\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f2n \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ed5ng d\u00e0n \u0111\u1ec1. T\u1ee9c l\u00e0 th\u1ed1ng k\u00ea t\u1ed5ng h\u1ee3p c\u00e1c d\u00e0n \u0111\u1ec1 chung t\u1ed5ng. M\u1ed7i t\u1ed5ng \u0111\u1ec1 c\u00f3 10 con, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ec1 t\u1ed5ng 6 c\u00f3 10 con c\u1ed9ng l\u1ea1i t\u1ed5ng b\u1eb1ng 6 ho\u1eb7c 16. Ch\u00fang ta c\u00f3 t\u1ed5ng b\u1ea3ng l\u00f4 \u0111\u1ec1 nh\u01b0 sau:<\/p>\n
<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 nh\u1ecf<\/h3>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng 0: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 0 ho\u1eb7c 10
\n00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 1: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 1 ho\u1eb7c 11
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 2: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 2 ho\u1eb7c 12
\n20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11<\/li>\n - T\u1ed5ng \u0111\u1ec1 3: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 3 ho\u1eb7c 13
\n03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 4: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 4 ho\u1eb7c 14
\n04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77<\/li>\n<\/ol>\n<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 to<\/h3>\n\n- B\u1ed9 \u0111\u1ec1 t\u1ed5ng 5: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 5 ho\u1eb7c 15
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n - T\u1ed5ng \u0111\u1ec1 6: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 6 ho\u1eb7c 16
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n - T\u1ed5ng \u0111\u1ec1 7: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 7 ho\u1eb7c 17
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n - T\u1ed5ng \u0111\u1ec1 8: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 8 ho\u1eb7c 18
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 9: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 9
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\nH\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
<\/span>B\u1ed9 s\u1ed1 12 con gi\u00e1p<\/h3>\n\u1ede c\u00e1c b\u1ed9 \u0111\u1ec1 12 con gi\u00e1p n\u00e0y, ch\u00fang ta m\u1eb7c \u0111\u1ecbnh m\u1ed7i m\u1ed9t con gi\u00e1p s\u1ebd \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi 1 con s\u1ed1 nh\u1ea5t \u0111\u1ecbnh. V\u00ed d\u1ee5 nh\u01b0 tu\u1ed5i T\u00fd l\u00e0 b\u1ed9 s\u1ed1 00. Sau \u0111\u00f3 ti\u1ebfn h\u00e0nh c\u1ed9ng th\u00eam 12 \u0111\u01a1n v\u1ecb v\u00e0o m\u1ed7i s\u1ed1 c\u1ed1 \u0111\u1ecbnh \u0111\u00f3 t\u1eeb \u0111\u00f3 s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t b\u1ed9 s\u1ed1 ho\u00e0n ch\u1ec9nh.<\/p>\n
<\/span>T\u1ed5ng \u0111\u1ec1<\/h2>\nT\u1ed5ng \u0111\u1ec1 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t ph\u00e9p t\u00ednh c\u1ed9ng 2 con s\u1ed1 trong 1 c\u1eb7p s\u1ed1. Ch\u00ednh v\u00ec th\u1ebf khi n\u00f3i t\u1edbi t\u1ed5ng b\u1ea3ng \u0111\u1ec1 ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 b\u1ed9 s\u1ed1 \u0111\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u1ef1a tr\u00ean ph\u00e9p t\u00ednh t\u1ed5ng. \u0110\u1ec3 xem th\u1ed1ng k\u00ea t\u1ed5ng \u0111\u1ec1 h\u00f4m nay, anh em c\u00f3 th\u1ec3 ch\u1ecdn xem t\u1ed5ng \u0111\u1ec1 th\u00e1ng, t\u1ed5ng \u0111\u1ec1 tu\u1ea7n, t\u1ed5ng \u0111\u1ec1 c\u1ea3 n\u0103m. V\u1ec1 ph\u1ea7n c\u00e1ch t\u00ednh ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n
Th\u1ed1ng k\u00ea c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ch\u00ednh x\u00e1c. T\u1ed5ng h\u1ee3p b\u1ea3ng \u0111\u1ec1 hay v\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f3 chung m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0 t\u1ed5ng hai ch\u1eef s\u1ed1 c\u1ee7a ch\u00fang lu\u00f4n lu\u00f4n b\u1eb1ng nhau. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 c\u00e1c \u0111\u00e0n anh \u0111\u00e0n ch\u1ecb \u0111i tr\u01b0\u1edbc th\u1ed1ng k\u00ea ra b\u00ed k\u00edp n\u00e0y.<\/p>\n
B\u1ea3ng t\u1ed5ng h\u1ee3p s\u1ed1 h\u1ee3p s\u1ed1 \u0111\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f2n \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ed5ng d\u00e0n \u0111\u1ec1. T\u1ee9c l\u00e0 th\u1ed1ng k\u00ea t\u1ed5ng h\u1ee3p c\u00e1c d\u00e0n \u0111\u1ec1 chung t\u1ed5ng. M\u1ed7i t\u1ed5ng \u0111\u1ec1 c\u00f3 10 con, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ec1 t\u1ed5ng 6 c\u00f3 10 con c\u1ed9ng l\u1ea1i t\u1ed5ng b\u1eb1ng 6 ho\u1eb7c 16. Ch\u00fang ta c\u00f3 t\u1ed5ng b\u1ea3ng l\u00f4 \u0111\u1ec1 nh\u01b0 sau:<\/p>\n
<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 nh\u1ecf<\/h3>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng 0: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 0 ho\u1eb7c 10
\n00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 1: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 1 ho\u1eb7c 11
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 2: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 2 ho\u1eb7c 12
\n20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11<\/li>\n - T\u1ed5ng \u0111\u1ec1 3: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 3 ho\u1eb7c 13
\n03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 4: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 4 ho\u1eb7c 14
\n04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77<\/li>\n<\/ol>\n<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 to<\/h3>\n\n- B\u1ed9 \u0111\u1ec1 t\u1ed5ng 5: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 5 ho\u1eb7c 15
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n - T\u1ed5ng \u0111\u1ec1 6: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 6 ho\u1eb7c 16
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n - T\u1ed5ng \u0111\u1ec1 7: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 7 ho\u1eb7c 17
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n - T\u1ed5ng \u0111\u1ec1 8: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 8 ho\u1eb7c 18
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 9: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 9
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\nH\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
T\u1ed5ng \u0111\u1ec1 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t ph\u00e9p t\u00ednh c\u1ed9ng 2 con s\u1ed1 trong 1 c\u1eb7p s\u1ed1. Ch\u00ednh v\u00ec th\u1ebf khi n\u00f3i t\u1edbi t\u1ed5ng b\u1ea3ng \u0111\u1ec1 ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u l\u00e0 b\u1ed9 s\u1ed1 \u0111\u00f3 \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea d\u1ef1a tr\u00ean ph\u00e9p t\u00ednh t\u1ed5ng. \u0110\u1ec3 xem th\u1ed1ng k\u00ea t\u1ed5ng \u0111\u1ec1 h\u00f4m nay, anh em c\u00f3 th\u1ec3 ch\u1ecdn xem t\u1ed5ng \u0111\u1ec1 th\u00e1ng, t\u1ed5ng \u0111\u1ec1 tu\u1ea7n, t\u1ed5ng \u0111\u1ec1 c\u1ea3 n\u0103m. V\u1ec1 ph\u1ea7n c\u00e1ch t\u00ednh ch\u00fang ta c\u00f3 th\u1ec3 t\u00ednh nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n
Th\u1ed1ng k\u00ea c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ch\u00ednh x\u00e1c. T\u1ed5ng h\u1ee3p b\u1ea3ng \u0111\u1ec1 hay v\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f3 chung m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0 t\u1ed5ng hai ch\u1eef s\u1ed1 c\u1ee7a ch\u00fang lu\u00f4n lu\u00f4n b\u1eb1ng nhau. \u0110\u00f3 c\u0169ng ch\u00ednh l\u00e0 c\u01a1 s\u1edf \u0111\u1ec3 c\u00e1c \u0111\u00e0n anh \u0111\u00e0n ch\u1ecb \u0111i tr\u01b0\u1edbc th\u1ed1ng k\u00ea ra b\u00ed k\u00edp n\u00e0y.<\/p>\n
B\u1ea3ng t\u1ed5ng h\u1ee3p s\u1ed1 h\u1ee3p s\u1ed1 \u0111\u1ec1 d\u01b0\u1edbi \u0111\u00e2y c\u00f2n \u0111\u01b0\u1ee3c coi l\u00e0 t\u1ed5ng d\u00e0n \u0111\u1ec1. T\u1ee9c l\u00e0 th\u1ed1ng k\u00ea t\u1ed5ng h\u1ee3p c\u00e1c d\u00e0n \u0111\u1ec1 chung t\u1ed5ng. M\u1ed7i t\u1ed5ng \u0111\u1ec1 c\u00f3 10 con, v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ec1 t\u1ed5ng 6 c\u00f3 10 con c\u1ed9ng l\u1ea1i t\u1ed5ng b\u1eb1ng 6 ho\u1eb7c 16. Ch\u00fang ta c\u00f3 t\u1ed5ng b\u1ea3ng l\u00f4 \u0111\u1ec1 nh\u01b0 sau:<\/p>\n
<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 nh\u1ecf<\/h3>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng 0: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 0 ho\u1eb7c 10
\n00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 1: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 1 ho\u1eb7c 11
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 2: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 2 ho\u1eb7c 12
\n20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11<\/li>\n - T\u1ed5ng \u0111\u1ec1 3: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 3 ho\u1eb7c 13
\n03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 4: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 4 ho\u1eb7c 14
\n04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77<\/li>\n<\/ol>\n<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 to<\/h3>\n\n- B\u1ed9 \u0111\u1ec1 t\u1ed5ng 5: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 5 ho\u1eb7c 15
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n - T\u1ed5ng \u0111\u1ec1 6: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 6 ho\u1eb7c 16
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n - T\u1ed5ng \u0111\u1ec1 7: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 7 ho\u1eb7c 17
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n - T\u1ed5ng \u0111\u1ec1 8: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 8 ho\u1eb7c 18
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 9: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 9
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\nH\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
\n00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/li>\n
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n
\n20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11<\/li>\n
\n03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76<\/li>\n
\n04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77<\/li>\n<\/ol>\n
<\/span>C\u00e1c t\u1ed5ng \u0111\u1ec1 to<\/h3>\n\n- B\u1ed9 \u0111\u1ec1 t\u1ed5ng 5: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 5 ho\u1eb7c 15
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n - T\u1ed5ng \u0111\u1ec1 6: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 6 ho\u1eb7c 16
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n - T\u1ed5ng \u0111\u1ec1 7: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 7 ho\u1eb7c 17
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n - T\u1ed5ng \u0111\u1ec1 8: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 8 ho\u1eb7c 18
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n - B\u1ed9 \u0111\u1ec1 t\u1ed5ng 9: hai ch\u1eef s\u1ed1 c\u1ed9ng l\u1ea1i b\u1eb1ng 9
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\nH\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
\n05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87<\/li>\n
\n06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88<\/li>\n
\n07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98<\/li>\n
\n08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/li>\n
\n09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/li>\n<\/ol>\n
H\u00ecnh \u1ea3nh 10 b\u1ed9 s\u1ed1 trong t\u1ed5ng \u0111\u1ec1 gi\u00fap anh em d\u1ec5 nh\u00ecn h\u01a1n:<\/p>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 kh\u00e1c<\/h2>\nT\u1eeb nh\u1eefng b\u1ed9 s\u1ed1 \u0111\u1ec1 nh\u01b0 tr\u00ean, anh em c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn \u0111\u00e1nh theo m\u1ed9t v\u00e0i c\u00e1ch ch\u01a1i m\u1edbi l\u1ea1 kh\u00e1c. Trong b\u00e0i vi\u1ebft n\u00e0y V\u0169 xin \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1ch m\u1ed9t v\u00e0i bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1. \u0110\u00f3 ch\u00ednh l\u00e0:<\/p>\n
\n- C\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10.<\/li>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft\/kh\u00f4ng chia h\u1ebft cho 3<\/li>\n<\/ul>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
\u0110\u1ea7u ti\u00ean h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1\u2026<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft v\u00e0 kh\u00f4ng chia h\u1ebft cho 3<\/h3>\nLo\u1ea1i d\u00e0n \u0111\u1ec1 th\u1ebf n\u00e0y c\u00f3 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m \u0111\u00f3 l\u00e0:<\/p>\n
\n- Ch\u00fang ta l\u1ea5y t\u1ed5ng c\u1ee7a con s\u1ed1 \u0111\u00f3 chia cho 3<\/li>\n
- N\u1ebfu chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o h\u00e0ng chia h\u1ebft cho 3<\/li>\n
- Kh\u00f4ng chia h\u1ebft th\u00ec x\u1ebfp v\u00e0o d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho3. V\u00e0 c\u1ee5 th\u1ec3 h\u01a1n th\u00ec ch\u00fang ta ch\u1ec9 c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn lo\u1ea1i \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2.<\/li>\n<\/ul>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3<\/h3>\n\u0110\u01a1n gi\u1ea3n l\u00e0 chia h\u1ebft \u0111\u01b0\u1ee3c cho 3, gi\u1ed1ng nh\u01b0 9 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 v\u1eady. C\u00e1c b\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m 34 s\u1ed1 nh\u01b0 sau:<\/p>\n
00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 1<\/h3>\nV\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
V\u00ed d\u1ee5 nh\u01b0 l\u00e0 10 chia 3 th\u00ec \u0111\u01b0\u1ee3c 3 d\u01b0 1, c\u00e1c con s\u1ed1 trong b\u1ed9 n\u00e0y \u0111\u1ec1u c\u00f3 t\u1ed5ng nh\u01b0 v\u1eady \u0111\u1ea5y. B\u1ed9 s\u1ed1 c\u00f3 t\u1ed5ng chia 3 d\u01b0 1 g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau:<\/p>\n
01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97.<\/p>\n
<\/span>B\u1ed9 \u0111\u1ec1 t\u1ed5ng chia 3 d\u01b0 2<\/h3>\nT\u1ed5ng chia 3 d\u01b0 2 s\u1ebd l\u00e0 c\u00e1c t\u1ed5ng 5, 11, 14, 17. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng chia 3 d\u01b0 2 g\u1ed3m 33 con s\u1ed1 sau:<\/p>\n
02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n
<\/span>D\u00e0n \u0111\u1ec1 t\u1ed5ng tr\u00ean 10 v\u00e0 l\u00f4 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10<\/h3>\nM\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
\n- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\nD\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
\n- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
\n- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\nT\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n\n\n<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n\n<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/h4>\n<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n\n- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
\n- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n\n- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\nSau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
M\u1ed9t bi\u1ebfn th\u1ec3 kh\u00e1c trong c\u00e1ch ch\u01a1i t\u1ed5ng \u0111\u1ec1 \u0111\u00f3 ch\u00ednh l\u00e0 ch\u01a1i t\u1ed5ng \u0111\u1ec1 l\u1edbn h\u01a1n 10 v\u00e0 \u0111\u1ec1 t\u1ed5ng nh\u1ecf h\u01a1n 10. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u1ecbnh ngh\u0129a c\u1ee7a ch\u00fang nh\u01b0 sau:<\/p>\n
B\u1ed9 \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 \u0111\u1ec1 c\u00f3 t\u1ed5ng nh\u1ecf h\u01a1n 10. C\u00f2n b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 c\u00f3 t\u1ed5ng tr\u00ean 10. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n
- \n
- S\u1ed1 12 c\u00f3 t\u1ed5ng 1+2=3 \u226410. V\u1eady s\u1ed1 12 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng d\u01b0\u1edbi 10.<\/li>\n
- S\u1ed1 75 c\u00f3 t\u1ed5ng 7+5=12 >10. V\u1eady s\u1ed1 75 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng to h\u01a1n 10.<\/li>\n<\/ul>\n
<\/span>D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10<\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? Theo nh\u01b0 \u0111\u1ecbnh ngh\u0129a \u1edf tr\u00ean th\u00ec ng\u01b0\u1eddi ta t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n t\u1ed5ng \u0111\u1ec1 nh\u1ecf h\u01a1n 10 n\u00e0y g\u1ed3m c\u00f3 55 con s\u1ed1. M\u1eddi anh em tham kh\u1ea3o d\u00e0n \u0111\u1ec1 n\u00e0y nh\u01b0 sau:<\/p>\n
<\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/h4>\n
\u0110\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 25 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng ch\u1eb5n d\u01b0\u1edbi 10<\/p>\n
- \n
- 00 02 04 06 08<\/li>\n
- 11 13 15 17<\/li>\n
- 20 22 24 26<\/li>\n
- 31 33 35<\/li>\n
- 40 42 44<\/li>\n
- 51 53<\/li>\n
- 60 62<\/li>\n
- 71<\/li>\n
- 80<\/li>\n<\/ul>\n
<\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/h4>\n
\u0110\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10 c\u00f3 bao nhi\u00eau con? T\u1ed5ng 30 con t\u1ea5t c\u1ea3 B\u1ed9 s\u1ed1 \u0111\u1ec1 t\u1ed5ng l\u1ebb d\u01b0\u1edbi 10<\/p>\n
- \n
- 01 03 05 07 09<\/li>\n
- 10 12 14 16 18<\/li>\n
- 21 23 25 27<\/li>\n
- 30 32 34 36<\/li>\n
- 41 43 45<\/li>\n
- 50 52 54<\/li>\n
- 61 63<\/li>\n
- 70 72<\/li>\n
- 81<\/li>\n
- 90<\/li>\n<\/ul>\n
<\/span>T\u1ed5ng \u0111\u1ec1 tr\u00ean 10<\/h3>\n
T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 c\u00f3 bao nhi\u00eau con s\u1ed1? T\u1ed5ng \u0111\u1ec1 tr\u00ean 10 s\u1ebd bao g\u1ed3m c\u00e1c con s\u1ed1 c\u00f2n l\u1ea1i trong t\u1ed5ng 100 con l\u00f4, t\u1ee9c l\u00e0 g\u1ed3m c\u00f3 45 con. Ch\u00fang ta c\u00f3 d\u00e0n t\u1ed5ng \u0111\u1ec1 tr\u00ean 10 nh\u01b0 sau:<\/p>\n
\n\n
\n \n <\/span>\u0110\u1ec1 t\u1ed5ng ch\u1eb5n tr\u00ean 10 c\u00f3 24 con s\u1ed1<\/h4>\n<\/td>\n
28 37 39 46 48 55 57 59 64 66 68 73 75 77 79 82 84 86 88 91 93 95 97 99<\/td>\n<\/tr>\n \n \n <\/span>\u0110\u1ec1 t\u1ed5ng l\u1ebb tr\u00ean 10 c\u00f3 21 con s\u1ed1<\/h4>\n<\/td>\n
19 29 38 47 49 56 58 65 67 69 74 76 78 83 85 87 89 92 94 96 98<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n <\/h4>\n
<\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi kh\u00e1c v\u1ec1 T\u1ed5ng \u0111\u1ec1<\/h4>\n
- \n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?
\nTheo t\u1ed5ng h\u1ee3p t\u1eeb th\u1ed1ng k\u00ea t\u1ed5ng d\u01b0\u1edbi 10 v\u00e0 t\u1ed5ng tr\u00ean 10 \u1edf tr\u00ean th\u00ec c\u00f3 th\u1ec3 r\u00fat ra k\u1ebft lu\u1eadn l\u00e0 d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 49 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 bao nhi\u00eau con?
\n\u0110\u1ec1 t\u1ed5ng l\u1ebb c\u00f3 51 con s\u1ed1.<\/li>\n - \u0110\u1ec1 t\u1ed5ng to, \u0111\u1ec1 t\u1ed5ng cao c\u00f3 bao nhi\u00eau con?
\nT\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f2n c\u00f3 nhi\u1ec1u t\u00ean g\u1ecdi kh\u00e1c nh\u01b0 \u0111\u1ec1 t\u1ed5ng to ho\u1eb7c d\u00e0n \u0111\u1ec1 t\u1ed5ng cao. D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn h\u01a1n 10 c\u00f3 45 con nh\u01b0 tr\u00ean.<\/li>\n<\/ol>\n<\/span>C\u00e1ch t\u00ednh t\u1ed5ng \u0111\u1ec1<\/h3>\n
\u0110\u00e1nh \u0111\u1ec1 theo t\u1ed5ng th\u1ef1c ch\u1ea5t kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p xa l\u1ea1. Ph\u01b0\u01a1ng ph\u00e1p b\u1eaft t\u1ed5ng \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u d\u00e2n ch\u01a1i ch\u01a1i theo. Anh em c\u00f3 th\u1ec3 an t\u00e2m v\u1ec1 t\u00ednh hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3.<\/p>\n
Nh\u00ecn chung, d\u00e2n ch\u01a1i \u0111\u1ec1 s\u1ebd ch\u1ecdn t\u00ednh t\u1ed5ng \u0111\u1ec1 v\u00e0o cu\u1ed1i tu\u1ea7n. Sau \u0111\u00f3 nu\u00f4i trong v\u00f2ng 2,3 ng\u00e0y trong tu\u1ea7n k\u1ebf ti\u1ebfp. C\u00e1ch t\u00ednh nh\u01b0 sau:<\/p>\n
- \n
- T\u00ednh t\u1ed5ng con s\u1ed1 v\u1ecb tr\u00ed th\u1ee9 2 c\u1ee7a gi\u1ea3i B\u1ea3y<\/li>\n
- T\u00ednh t\u1ed5ng v\u00e0 hi\u1ec7u c\u1ee7a hai ch\u1eef s\u1ed1 m\u00e0 ta v\u1eeba c\u1ed9ng \u0111\u01b0\u1ee3c.<\/li>\n
- T\u1ed5ng v\u00e0 hi\u1ec7u \u0111\u00f3 ch\u00ednh l\u00e0 2 b\u1ed9 t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 nu\u00f4i trong tu\u1ea7n sau.<\/li>\n<\/ol>\n
V\u00ed d\u1ee5: KQXS Ch\u1ee7 nh\u1eadt ng\u00e0y 16\/06\/2024: v\u1ecb tr\u00ed th\u1ee9 hai gi\u1ea3i B\u1ea3y l\u00e0 con 37.<\/p>\n
Ta c\u00f3:<\/h4>\n
- \n
- 3+7=10<\/li>\n
- 1-0=1<\/li>\n
- 1+0=1<\/li>\n
- T\u1ed5ng \u0111\u1ec1 \u1edf \u0111\u00e2y l\u00e0 b\u1ed9 s\u1ed1 t\u1ed5ng 1<\/li>\n
- Chi\u1ebfu theo b\u1ea3ng b\u1ed9 s\u1ed1 t\u1ed5ng \u0111\u1ec1, ta c\u00f3 d\u00e0n c\u00f3 th\u1ec3 nu\u00f4i trong tu\u1ea7n sau l\u00e0
\n01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/li>\n - Ng\u00e0y th\u1ee9 2 v\u1ec1: 74 \u2013 65
\nNg\u00e0y th\u1ee9 3 v\u1ec1: 83 \u2013 47 \u2013 74 \u2013 65<\/li>\n<\/ul>\n<\/span>T\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a v\u1ec1<\/h3>\n
Sau khi \u0111\u00e3 t\u00ednh \u0111\u01b0\u1ee3c t\u1ed5ng \u0111\u1ec1 nh\u01b0ng c\u00e1c con s\u1ed1 \u0111\u1ec1 \u0111\u00f3 m\u00e3i kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec ch\u00fang ta g\u1ecdi n\u00f3 l\u00e0 t\u1ed5ng \u0111\u1ec1 l\u00e2u ch\u01b0a ra. \u1ede c\u00e1c trang soi c\u1ea7u hay xem k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 h\u1ea7u h\u1ebft \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng n\u00e0y. Anh ch\u1ecb em c\u00f3 th\u1ec3 tham kh\u1ea3o t\u1ed5ng \u0111\u1ec1 l\u00e2u ra nh\u1ea5t.<\/p>\n
M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng n\u1ebfu m\u1ed9t t\u1ed5ng m\u00e0 l\u00e2u kh\u00f4ng th\u1ea5y v\u1ec1 th\u00ec c\u00f3 th\u1ec3 coi n\u00f3 l\u00e0 t\u1ed5ng gan (t\u1ed5ng khan). T\u1eeb t\u1ed5ng h\u1ee3p \u0111\u1ec1 gan\/khan n\u00e0y, ch\u00fang ta c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u ch\u00fa \u00fd \u0111\u1ebfn ch\u00fang v\u00e0 canh me \u0111\u1ec3 \u0111\u00e1nh. M\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 coi \u0111\u00f3 l\u00e0 l\u01b0u \u00fd c\u1ea7n tham kh\u1ea3o \u0111\u1ec1 t\u00ecm \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u01b0ng \u00fd h\u01a1n.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng ghi ch\u00e9p g\u1ed1c v\u1ec1 c\u00e1c lo\u1ea1i b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 hi\u1ec7n nay m\u00e0 website c\u1ee7a ch\u00fang t\u00f4i t\u1eadp h\u1ee3p \u0111\u01b0\u1ee3c. C\u00e1c h\u1ec7 s\u1ed1 l\u00f4 \u0111\u1ec1 n\u00e0y \u0111\u00e3 c\u00f3 t\u1eeb l\u00e2u \u0111\u1eddi v\u00e0 \u0111\u01b0\u1ee3c r\u1ea5t r\u1ea5t nhi\u1ec1u anh em theo \u0111\u00e1nh. Tuy nhi\u00ean ch\u00fang kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u00fang 100% v\u00e0 ch\u1ec9 n\u00ean \u0111\u1ec3 tham kh\u1ea3o.<\/p>\n<\/div>\n<\/div>\n<\/article>\n
ch\u1ed1t s\u1ed1 vip <\/span><\/h2>\n
- D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n c\u00f3 bao nhi\u00eau con?