Nhi\u1ec1u d\u00e2n cao th\u1ee7 l\u00f4 \u0111\u1ec1 cho r\u1eb1ng ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 m\u00e0 kh\u00f4ng bi\u1ebft <\/em>c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1<\/em><\/strong> (hay c\u00f2n g\u1ecdi l\u00e0 t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t) th\u00ec ch\u1eafc ch\u1eafn s\u1edbm mu\u1ed9n g\u00ec c\u0169ng m\u1ea5t ti\u1ec1n. Trong b\u00e0i vi\u1ebft n\u00e0y, s\u1ebd b\u1eadt m\u00ed v\u1edbi c\u00e1c b\u1ea1n v\u1ec1 kh\u00e1i ni\u1ec7m t\u1ed5ng \u0111\u1ec1 c\u0169ng nh\u01b0 5 c\u00e1ch ch\u01a1i hay nh\u1ea5t m\u1edbi \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt t\u1eeb nh\u1eefng cao th\u1ee7 trong l\u00e0ng s\u1ed1 h\u1ecdc. \u0110\u00e3 l\u00e0 d\u00e2n ch\u01a1i s\u1ed1 th\u00ec n\u00ean xem qua m\u1ed9t l\u1ea7n \u0111\u1ec3 n\u00e2ng kh\u1ea3 n\u0103ng chi\u1ebfn th\u1eafng c\u1ee7a m\u00ecnh l\u00ean nh\u00e9.<\/em><\/p>\n T\u1ed5ng \u0111\u1ec1 l\u00e0 vi\u1ec7c ng\u01b0\u1eddi ch\u01a1i s\u1ebd quan s\u00e1t c\u00e1c k\u1ebft qu\u1ea3 l\u00f4 \u0111\u1ec1 v\u1eeba v\u1ec1 trong nh\u1eefng l\u1ea7n tr\u01b0\u1edbc, sau \u0111\u00f3 c\u1ed9ng c\u00e1c con s\u1ed1 trong c\u00e1c gi\u1ea3i v\u1edbi nhau theo nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau \u0111\u1ec3 t\u1ea1o th\u00e0nh nh\u1eefng s\u1ed1 l\u00f4 \u0111\u1eb9p nh\u1ea5t. Hi\u1ec7n nay, c\u00e1ch b\u1eaft \u0111\u1ec1 n\u00e0y kh\u00e1 ph\u1ed5 bi\u1ebfn, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi nh\u1eefng ng\u01b0\u1eddi ch\u01a1i \u0111ang t\u00ecm c\u00e1ch b\u1eaft c\u1ea7u \u0111\u1ec1 mi\u1ec1n B\u1eafc. C\u00e1c t\u1ed5ng \u0111\u1ec1 \u0111\u01b0\u1ee3c t\u00ecnh b\u1eb1ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau, b\u00e0i vi\u1ebft s\u1ebd gi\u1edbi thi\u1ec7u m\u1ed9t s\u1ed1 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u01b0a chu\u1ed9ng v\u00e0 cho l\u00e0 chu\u1ea9n nh\u1ea5t<\/p>\n \u1ede \u0111\u00e2y, \u0111\u1eb7c bi\u1ec7t v\u1ec1 ng\u00e0y 22\/11\/2024 l\u00e0 75178. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd l\u00e0m nh\u01b0 sau:<\/p>\n \u0110\u00e2y m\u1edbi ch\u1ec9 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u01a1 b\u1ea3n nh\u1ea5t, d\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 h\u00e0ng ng\u00e0y n\u00e2ng cao m\u00e0 mu\u1ed1n gi\u1edbi thi\u1ec7u cho c\u00e1c b\u1ea1n.<\/p>\n M\u1ed7i ng\u01b0\u1eddi ch\u01a1i s\u1ebd c\u00f3 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p nhau kh\u00e1c nhau. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o s\u1ed1 l\u00f4 cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c ch\u1ecdn c\u0169ng mang l\u1ea1i l\u1ee3i nhu\u1eadn gi\u1ed1ng nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 5 c\u00e1ch m\u1edbi nh\u1ea5t m\u00e0 d\u00e2n ch\u01a1i l\u00f4 \u0111\u1ec1 chuy\u00ean nghi\u1ec7p r\u1ea5t hay \u00e1p d\u1ee5ng, b\u1ea1n c\u0169ng th\u1eed xem sao nh\u00e9!<\/p>\n C\u00e1ch b\u1eaft \u0111\u1ec1 theo t\u1ed5ng n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i ch\u00ednh x\u00e1c, nh\u01b0ng ch\u1ee7 y\u1ebfu ch\u1ec9 ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 \u0111\u1ee9c t\u00ednh nh\u1eabn n\u1ea1i. \u1ede \u0111\u00e2y, ng\u01b0\u1eddi ch\u01a1i s\u1ebd t\u1ea1o l\u00f4 s\u1ed1 \u0111\u1ec1 b\u1eb1ng c\u00e1ch c\u1ed9ng t\u1ea5t c\u1ea3 c\u00e1c gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1ec1 c\u00e1c ng\u00e0y tr\u01b0\u1edbc.<\/p>\n Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1ebd mang l\u1ea1i cho ng\u01b0\u1eddi ch\u01a1i 10 c\u1eb7p l\u00f4 nu\u00f4i \u0111\u01b0\u1ee3c trong 1 tu\u1ea7n, nh\u1eefng c\u1eb7p l\u00f4 n\u00e0o ra r\u1ed3i v\u1eabn c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c nu\u00f4i. Trong tr\u01b0\u1eddng h\u1ee3p t\u1ed5ng c\u1ed9ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n 10 th\u00ec ch\u1ec9 ch\u1ecdn ch\u1eef s\u1ed1 \u1edf h\u00e0ng \u0111\u01a1n v\u1ecb.<\/p>\n V\u00ed d\u1ee5: \u0110\u1eb7c bi\u1ec7t x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc v\u1ec1 t\u1eeb ng\u00e0y 16\/11 \u0111\u1ebfn ng\u00e0y 22\/11 c\u1ee5 th\u1ec3 nh\u01b0 h\u00ecnh minh h\u1ecda b\u00ean d\u01b0\u1edbi. B\u1ea1n h\u00e3y l\u1ea7n l\u01b0\u1ee3t t\u00ednh t\u1ed5ng c\u1ee7a c\u00e1c con s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a t\u1eebng ng\u00e0y. Sau \u0111\u00f3, b\u1ea1n xem nh\u1eefng con s\u1ed1 n\u00e0o kh\u00f4ng n\u1eb1m trong t\u1ed5ng v\u1eeba t\u00ednh v\u00e0 ch\u1ecdn ch\u00fang \u0111\u1ec3 t\u1ea1o n\u00ean m\u1ed9t d\u00e0n l\u00f4 \u01b0ng \u00fd nh\u1ea5t \u0111\u1ec3 nu\u00f4i trong th\u1eddi gian 1 tu\u1ea7n.<\/p>\n Theo ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, b\u1ea1n s\u1ebd l\u1ea5y c\u1eb7p s\u1ed1 th\u1ee9 2 trong gi\u1ea3i 7 r\u1ed3i t\u00ednh t\u1ed5ng 2 s\u1ed1 \u0111\u00f3. D\u00f9ng s\u1ed1 t\u1ed5ng \u0111\u00f3 \u0111\u1ec3 nu\u00f4i trong kho\u1ea3ng 2 \u0111\u1ebfn 3 ng\u00e0y ti\u1ebfp theo. Xem ph\u1ea7n minh h\u1ecda trong h\u00ecnh b\u00ean d\u01b0\u1edbi:<\/p>\n \u1ede \u0111\u00e2y, c\u1eb7p s\u1ed1 th\u1ee9 2 trong gi\u1ea3i 7 l\u00e0 90, c\u1ed9ng c\u00e1c s\u1ed1 l\u1ea1i ta thu \u0111\u01b0\u1ee3c t\u1ed5ng l\u00e0 9. B\u1ea1n c\u00f3 th\u1ec3 l\u1ea5y 9 l\u00e0 con b\u1ea1ch th\u1ee7 l\u00f4 v\u00e0 \u0111\u00e1nh lu\u00f4n trong ng\u00e0y mai, ng\u00e0y kia. Ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o c\u1eb7p song th\u1ee7 l\u00f4 09 v\u00e0 90 \u0111\u1ec3 nu\u00f4i trong 7 ng\u00e0y ti\u1ebfp theo.<\/p>\n <\/p>\n T\u1ed5ng c\u00e1c s\u1ed1 trong c\u1eb7p s\u1ed1 th\u1ee9 2 c\u1ee7a gi\u1ea3i 7 m\u00e0 l\u1edbn h\u01a1n 10, th\u00ec c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 ch\u00ednh l\u00e0: B\u1ea1n c\u1ed9ng t\u1ed5ng 2 s\u1ed1 trong t\u1ed5ng thu \u0111\u01b0\u1ee3c v\u00e0 tr\u1eeb 2 s\u1ed1 trong t\u1ed5ng v\u1eeba thu \u0111\u01b0\u1ee3c v\u1edbi nhau \u0111\u1ec3 nu\u00f4i. V\u00ed d\u1ee5: c\u1eb7p s\u1ed1 th\u1ee9 2 trong gi\u1ea3i 7 l\u00e0 85, t\u1ed5ng l\u00e0: 8+5=13, b\u1ea1n s\u1ebd b\u1eaft t\u1ed5ng \u0111\u1ec1 l\u00e0: 1+3 v\u00e0 1-3, ra \u0111\u01b0\u1ee3c 2 con t\u1ed5ng \u0111\u1ec1 l\u00e0 4 v\u00e0 2 \u0111\u1ec3 nu\u00f4i.<\/p>\n \u0110\u00e2y l\u00e0 c\u00e1ch c\u1ef1c k\u1ef3 nhanh g\u1ecdn, \u0111em l\u1ea1i k\u1ebft qu\u1ea3 trong tu\u1ea7n cho nh\u1eefng d\u00e2n l\u00f4 \u0111\u1ec1 m\u00e1u chi\u1ebfn, th\u00edch h\u1ee3p v\u1edbi c\u1ea3 XSMB v\u00e0 XSMN.<\/p>\n \u1ede \u0111\u00e2y, b\u1ea1n s\u1ebd l\u1ea5y con s\u1ed1 gi\u1ea3i nh\u1ea5t v\u00e0 \u0111\u1eb7c bi\u1ec7t v\u1ec1 ng\u00e0y h\u00f4m qua \u0111\u1ec3 t\u1ea1o n\u00ean 1 h\u00e0ng, g\u1ecdi l\u00e0 \u0111\u00e1y c\u1ee7a tam gi\u00e1c.<\/p>\n Xem h\u00ecnh \u1ea3nh \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 v\u00ed d\u1ee5:<\/p>\n Gi\u1ea3i nh\u1ea5t l\u00e0 7158 v\u00e0 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 15315. Ghi gh\u00e9p 2 gi\u1ea3i n\u00e0y v\u1edbi nhau theo th\u1ee9 t\u1ef1 \u0111\u1eb7c bi\u1ec7t – gi\u1ea3i nh\u1ea5t, b\u1ea1n s\u1ebd c\u00f3 d\u00e3y s\u1ed1 1 – 5 – 3 – 1 – 5 – 7 – 5 – 1 – 7 – 8 n\u1eb1m \u1edf c\u1ea1nh \u0111\u00e1y c\u1ee7a tam gi\u00e1c (nh\u01b0 h\u00ecnh). Ti\u1ebfp theo, b\u1ea1n s\u1eed d\u1ee5ng kh\u00e1i ni\u1ec7m tam gi\u00e1c Pascal:<\/p>\n Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ng\u01b0\u1eddi ch\u01a1i hay nh\u1ea7m l\u1eabn v\u1edbi soi c\u1ea7u tam gi\u00e1c. Tuy nhi\u00ean \u0111\u00e2y l\u00e0 c\u00e1ch ho\u00e0n to\u00e0n kh\u00e1c. Khi s\u1eed d\u1ee5ng c\u00e1ch n\u00e0y, ng\u01b0\u1eddi ch\u01a1i c\u1ea7n l\u01b0u \u00fd lo\u1ea1i b\u1ecf nh\u1eefng con l\u00f4 gan.<\/p>\n Ng\u01b0\u1eddi ch\u01a1i c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1ch b\u1eaft gi\u1ea3i \u0111\u1eb7c bi\u1ec7t b\u1eb1ng Pascal n\u00e0y. C\u00e1ch t\u00ednh \u0111\u1ec1 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean.<\/p>\n \u1ede \u0111\u00e2y, ng\u01b0\u1eddi ch\u01a1i s\u1ebd c\u1ed9ng c\u00e1c s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t theo ph\u01b0\u01a1ng ph\u00e1p c\u1ed9ng nh\u1ea3y c\u00f3c, xem t\u1ed5ng \u0111\u1ec1 l\u00e0 g\u00ec, t\u1eeb \u0111\u00f3 ch\u1ecdn ra \u0111\u01b0\u1ee3c con b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y ti\u1ebfp theo.<\/p>\n V\u00ed d\u1ee5, gi\u1ea3i \u0111\u1eb7c bi\u1ec7t XSMB l\u00e0 7 5 1 7 8 ra ng\u00e0y th\u1ee9 2. B\u1ea1n s\u1ebd c\u1ed9ng nh\u1ea3y c\u00f3c nh\u01b0 h\u00ecnh \u1ea3nh b\u00ean d\u01b0\u1edbi.<\/p>\n Nh\u01b0 v\u1eady, b\u1ea1n thu \u0111\u01b0\u1ee3c con b\u1ea1ch th\u1ee7 l\u00f4 l\u00e0 17 v\u00e0 71, t\u00f9y l\u1ef1a ch\u1ecdn \u0111\u1ec3 \u0111\u00e1nh cho ng\u00e0y th\u1ee9 3 trong tu\u1ea7n. B\u00ean c\u1ea1nh \u0111\u00f3, b\u1ea1n k\u1ebft h\u1ee3p v\u1edbi ph\u00e2n t\u00edch b\u1ea3ng th\u1ed1ng k\u00ea gi\u1ea3i \u0111\u1eb7c bi\u1ec7t tr\u00ean \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng c\u00f3 l\u1ee3i nhu\u1eadn l\u1edbn.<\/p>\n M\u1eb7c d\u00f9 ra \u0111\u1eddi t\u1eeb r\u1ea5t l\u00e2u nh\u01b0ng \u0111\u00e2y l\u00e0 c\u00e1ch \u0111\u01b0\u1ee3c \u0111\u00fac k\u1ebft t\u1eeb kinh nghi\u1ec7m c\u1ee7a nhi\u1ec1u ng\u01b0\u1eddi \u0111i tr\u01b0\u1edbc, d\u1ef1a v\u00e0o c\u00e1c th\u1ed1ng k\u00ea t\u1ed5ng \u0111\u1ec1 \u0111\u1ec3 cho ra nh\u1eefng quy lu\u1eadt n\u00e0y. Cho \u0111\u1ebfn th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c kh\u00e1 cao. C\u1ee5 th\u1ec3:<\/p>\n L\u00f4 b\u1eaft theo t\u1ed5ng \u0111\u1ec1 th\u1ee9 2 \u0111\u1ea7u tu\u1ea7n th\u01b0\u1eddng r\u1ea5t \u00edt khi sai, ch\u00ednh v\u00ec th\u1ebf nh\u1eefng ng\u01b0\u1eddi ch\u01a1i m\u1edbi h\u1ecdc th\u01b0\u1eddng r\u1ea5t hay \u00e1p d\u1ee5ng. V\u00ed d\u1ee5: Ng\u00e0y 15\/8 c\u00f3 t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t nh\u01b0 sau: 0 + 5 + 4 + 8 + 8, ta s\u1ebd \u0111\u01b0\u1ee3c c\u00e1c b\u1ed9 s\u1ed1: 00, 55, 191, 282, 373, 464. B\u1ed9 s\u1ed1 n\u00e0y c\u00f3 th\u1ec3 d\u00f9ng nu\u00f4i 1 tu\u1ea7n sau \u0111\u00f3. \u0110\u00e2y l\u00e0 c\u00e1ch \u0111em l\u1ea1i l\u00e3i cao ngo\u00e0i s\u1ee9c t\u01b0\u1edfng t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c anh em v\u00f4 c\u00f9ng y\u00eau th\u00edch.<\/p>\n B\u00ean c\u1ea1nh c\u00e1c c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1, ng\u01b0\u1eddi ch\u01a1i c\u00f2n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam nhi\u1ec1u kinh nghi\u1ec7m ch\u01a1i hay v\u00e0 nh\u1eefng kinh nghi\u1ec7m soi t\u1ed5ng \u0111\u1ec1<\/p>\n Top 9 c\u00e1ch b\u1eaft l\u00f4 gi\u1ea3i 7 b\u00e1ch ph\u00e1t b\u00e1ch tr\u00fang c\u1ee7a cao th\u1ee7<\/p>\n C\u00e1ch \u0111\u00e1nh l\u00f4 g\u1ea5p th\u1ebfp, h\u01b0\u1edbng d\u1eabn v\u00e0o ti\u1ec1n l\u00e3i kh\u1ee7ng trong ng\u00e0y<\/p>\n <\/p>\n C\u00e1ch b\u1eaft c\u1ea7u \u0111\u1ec1 mi\u1ec1n B\u1eafc theo t\u1ed5ng n\u00e0y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c v\u1edbi c\u1ea3 \u0111\u00e0i Trung v\u00e0 \u0111\u00e0i Nam, \u00e1p d\u1ee5ng h\u00e0ng ng\u00e0y \u0111\u1ec3 \u0111\u00e1nh cho h\u00f4m sau. Th\u00f4ng th\u01b0\u1eddng sau khi ra soi ra t\u1ed5ng \u0111\u1ec1, ng\u01b0\u1eddi ch\u01a1i s\u1ebd s\u1eed d\u1ee5ng b\u00f3ng \u00e2m d\u01b0\u01a1ng \u0111\u1ec3 t\u00ecm ra con s\u1ed1 may m\u1eafn.<\/p>\n \u0110\u00e2y l\u00e0 th\u01b0\u01a1ng ph\u00e1p m\u00e0 ng\u01b0\u1eddi ch\u01a1i l\u1ea5y t\u1ed5ng 2 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a 2 ng\u00e0y li\u00ean t\u1ee5c \u0111\u1ec3 ch\u01a1i. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n C\u1ed9ng t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u1ee7a ng\u00e0y 1. \u0110\u01b0\u1ee3c s\u1ed1 AB.<\/p>\n C\u1ed9ng t\u1ed5ng gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ng\u00e0y 2. \u0110\u01b0\u1ee3c s\u1ed1 CD.<\/p>\n L\u1ea5y A+B = E v\u00e0 C+D = F, ng\u01b0\u1eddi ch\u01a1i \u0111\u01b0\u1ee3c EF.<\/p>\n \u0110\u00e2y l\u00e0 ph\u1ea7n quan tr\u1ecdng c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p m\u00e0 ng\u01b0\u1eddi ch\u01a1i ph\u1ea3i n\u1eb1m l\u00f2ng \u0111\u1ec3 ra con s\u1ed1 ch\u01a1i cho h\u00f4m sau:<\/p>\n N\u1ebfu E v\u00e0 F c\u00f9ng nh\u1ecf h\u01a1n 10, l\u1ea5y 10 – E = G v\u00e0 10 – F = H. Ch\u01a1i l\u00f4 GH, HG cho ng\u00e0y h\u00f4m sau.<\/p>\n N\u1ebfu E v\u00e0 F c\u00f9ng l\u1edbn h\u01a1n 10, l\u1ea5y 20 – E = I v\u00e0 20 – F = K. Ch\u01a1i l\u00f4 IK, KI cho ng\u00e0y h\u00f4m sau.<\/p>\n N\u1ebfu E nh\u1ecf h\u01a1n 10 v\u00e0 F l\u1edbn h\u01a1n 10. L\u1ea5y 10-E = L, l\u1ea5y 20 – F = M. \u0110\u00e1nh l\u00f4 LM, ML cho ng\u00e0y h\u00f4m sau.<\/p>\n N\u1ebfu E l\u1edbn h\u01a1n 10 v\u00e0 F nh\u1ecf h\u01a1n 10. L\u1ea5y 20 – E = T, 10 – F = Y. Ch\u01a1i l\u00f4 TY, YT cho ng\u00e0y h\u00f4m sau.<\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng 0 g\u1ed3m c\u00f3: 00 v\u00e0 55.<\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng 1 g\u1ed3m c\u00e1c s\u1ed1: 01 10 29 92 38 83 47 74 56 65.<\/p>\n G\u1ed3m c\u00f3 c\u00e1c s\u1ed1: 02 20 11 39 93 48 84 57 75 66<\/p>\n C\u00e1c con s\u1ed1: 03 30 12 21 49 94 58 85 67 76 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng 3.<\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng n\u00e0y bao g\u1ed3m c\u00e1c con s\u1ed1: 04 40 13 31 22 59 95 86 68 77<\/p>\n C\u00e1c con s\u1ed1: 05 50 14 41 23 32 69 96 78 87 thu\u1ed9c d\u00e0n t\u1ed5ng \u0111\u1ec1 nay<\/p>\n C\u00e1c s\u1ed1: 60 06 15 51 24 42 33 88 79 97 thu\u1ed9c d\u00e0n \u0111\u1ec1 t\u1ed5ng 6<\/p>\n T\u1ed5ng \u0111\u1ec1 7 \u0111\u00e1nh theo d\u00e0n g\u1ed3m c\u00e1c s\u1ed1: 07 70 16 61 25 52 34 43 89 98<\/p>\n G\u1ed3m c\u00e1c s\u1ed1: 08 80 17 71 26 62 35 53 88 99<\/p>\n C\u00e1c s\u1ed1 thu\u1ed9c d\u00e0n n\u00e0y g\u1ed3m c\u00f3: 09 90 18 81 27 72 36 63 45 54<\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5n ch\u1eb5n g\u1ed3m c\u00e1c s\u1ed1 sau:<\/p>\n 00, 02, 04, 06, 08, 20, 22, 24, 26, 28, 40, 42, 44, 46, 48, 60, 62, 64, 66, 68, 80, 82, 84, 86, 88, 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99.<\/p>\n \u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c d\u00e0n n\u00e0y, h\u1ed9i vi\u00ean c\u1ed9ng 2 s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 ch\u1eb5n<\/p>\n T\u1ea1o d\u00e0n n\u00e0y b\u1eb1ng c\u00e1ch c\u1ed9ng 2 s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t ra s\u1ed1 l\u1ebb. D\u00e0n n\u00e0y g\u1ed3m c\u00f3 c\u00e1c s\u1ed1:<\/p>\n 01, 03, 05, 07, 09, 21, 23, 25, 27, 29, 41, 43, 45, 47, 49, 61, 63, 65, 67, 69, 81, 83, 85, 87, 89, 10, 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98<\/p>\n \n1. T\u1ed5ng \u0111\u1ec1 l\u00e0 g\u00ec?<\/strong><\/h2>\n
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2. Top 8 c\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 hay nh\u1ea5t ai c\u0169ng n\u00ean bi\u1ebft<\/strong><\/h2>\n
#1. C\u1ed9ng d\u1ed3n c\u00e1c gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1ec1 c\u00e1c ng\u00e0y tr\u01b0\u1edbc<\/em><\/h3>\n
#2. C\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 d\u1ef1a v\u00e0o gi\u1ea3i 7<\/em><\/h3>\n
#3. Tam gi\u00e1c Pascal<\/em><\/h3>\n
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#4. C\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 Nh\u1ea3y c\u00f3c<\/em><\/h3>\n
#5. Ph\u01b0\u01a1ng ph\u00e1p b\u1ea1c nh\u1edb<\/em><\/h3>\n
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#6. C\u00e1ch b\u1eaft t\u1ed5ng theo th\u1ee9 2 c\u1ee7a tu\u1ea7n<\/em><\/h3>\n
\nNg\u01b0\u1eddi ch\u01a1i l\u1ea5y s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t th\u1ee9 2 \u0111\u1ea7u tu\u1ea7n l\u00e0 t\u1ed5ng ch\u01a1i l\u00f4 cho c\u1ea3 tu\u1ea7n. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd ch\u01a1i v\u00e0o kho\u1ea3ng ng\u00e0u th\u1ee9 3 v\u00e0 4. \u0110\u1ebfn ng\u00e0y th\u1ee9 5 c\u1ee7a tu\u1ea7n th\u00ec h\u1ed9i vi\u00ean kh\u00f4ng n\u00ean v\u00e0 ti\u1ec1n theo m\u00e0 c\u00f3 th\u1ec3 tham kh\u1ea3o 05 c\u00e1ch soi c\u1ea7u c\u00f2n l\u1ea1i trong b\u00e0i vi\u1ebft.<\/p>\n#7. C\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 h\u00e0ng ng\u00e0y<\/em><\/h3>\n
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#8. C\u00e1ch b\u1eaft t\u1ed5ng \u0111\u1ec1 chu\u1ea9n b\u00ed truy\u1ec1n<\/em><\/h3>\n
3. T\u1ed5ng h\u1ee3p c\u00e1c d\u00e0n t\u1ed5ng \u0111\u1ec1<\/h2>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 0<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 1<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 2<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 3 <\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 4<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u00ea 5<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 6<\/em><\/h3>\n
D\u00e0n t\u1ed5ng \u0111\u1ec1 7<\/em><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng 8<\/em><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng 9<\/em><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n<\/em><\/h3>\n
D\u00e0n \u0111\u1ec3 t\u1ed5ng l\u1ebb<\/em><\/h3>\n
4. Th\u1ed1ng k\u00ea k\u1ebft qu\u1ea3 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t t\u1ed5ng \u0111\u1ec1 v\u1ec1 bao nhi\u00eau<\/h2>\n