{"id":17943,"date":"2024-05-02T03:04:58","date_gmt":"2024-05-02T03:04:58","guid":{"rendered":"https:\/\/soicau5101.minhngocxoso.com\/?p=17943"},"modified":"2024-05-02T03:04:58","modified_gmt":"2024-05-02T03:04:58","slug":"nhung-cach-bat-cau-lo-mien-bac-cuc-chuan-de-trung-va-don-gian-nhat","status":"publish","type":"post","link":"https:\/\/caulotobachthu.com\/nhung-cach-bat-cau-lo-mien-bac-cuc-chuan-de-trung-va-don-gian-nhat\/","title":{"rendered":"nh\u1eefng c\u00e1ch b\u1eaft c\u1ea7u l\u00f4 mi\u1ec1n b\u1eafc c\u1ef1c chu\u1ea9n, d\u1ec5 tr\u00fang v\u00e0 \u0111\u01a1n gi\u1ea3n nh\u1ea5t"},"content":{"rendered":"
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V\u1edbi nh\u1eefng ng\u01b0\u1eddi \u0111am m\u00ea l\u00f4 \u0111\u1ec1 c\u00f3 l\u1ebd \u0111\u00e3 qu\u00e1 quen thu\u1ed9c v\u1edbi vi\u1ec7c soi c\u1ea7u l\u00f4 m\u1ed7i ng\u00e0y. Vi\u1ec7c b\u1eaft c\u1ea7u l\u00f4 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o may m\u1eafn m\u00e0 c\u00f2n l\u00e0 kinh nghi\u1ec7m v\u00e0 c\u1ea3 thu\u1eadt to\u00e1n l\u00f4 \u0111\u1ec1. V\u00ec v\u1eady, \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi m\u1edbi ch\u01a1i \u0111i\u1ec1u n\u00e0y kh\u00e1 ph\u1ee9c t\u1ea1p, kh\u00f4ng h\u1ec1 \u0111\u01a1n gi\u1ea3n. Trong b\u00e0i vi\u1ebft h\u00f4m nay, ch\u00fang t\u00f4i s\u1ebd gi\u1edbi thi\u1ec7u \u0111\u1ebfn b\u1ea1n 5 c\u00e1ch b\u1eaft c\u1ea7u l\u00f4 mi\u1ec1n B\u1eafc c\u1ef1c chu\u1ea9n x\u00e1c, c\u00f3 x\u00e1c su\u1ea5t th\u00e0nh c\u00f4ng cao, \u0111\u01b0\u1ee3c \u0111\u00fac r\u00fat t\u1eeb nh\u1eefng cao th\u1ee7 l\u00e3o l\u00e0ng truy\u1ec1n l\u1ea1i.<\/p>\n\n\n\n
\u0110\u1ed1i v\u1edbi c\u00e1ch soi l\u00f4 n\u00e0y, b\u1ea1n ch\u1ec9 c\u1ea7n quan t\u00e2m \u0111\u1ebfn ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t x\u1ed5 s\u1ed1 mi\u1ec1n B\u1eafc 2 ng\u00e0y \u0111\u1ea7u tu\u1ea7n. C\u00f3 ngh\u0129a l\u00e0, b\u1ea1n h\u00e3y c\u1ed9ng 2 ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a gi\u1ea3i \u0111\u1eb7c bi\u1ec7t v\u1ec1 v\u00e0o ng\u00e0y th\u1ee9 2 v\u00e0 ng\u00e0y th\u1ee9 3 l\u1ea1i v\u1edbi nhau. Sau \u0111\u00f3 s\u1eed d\u1ee5ng t\u1ed5ng v\u1eeba t\u00ednh \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u00e0m t\u1ed5ng \u0111\u1ec1 \u0111\u00e1nh trong 5 ng\u00e0y ti\u1ebfp theo: th\u1ee9 4, 5, 6, 7 v\u00e0 ch\u1ee7 nh\u1eadt. L\u01b0u \u00fd, n\u1ebfu t\u1ed5ng t\u00ecm \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n 10, th\u00ec b\u1ea1n h\u00e3y c\u1ed9ng ti\u1ebfp 2 ch\u1eef s\u1ed1 c\u1ee7a t\u1ed5ng \u0111\u00f3 \u0111\u1ec3 nu\u00f4i c\u1ea7u ch\u1ea1m 5 ng\u00e0y sau.<\/p>\n\n\n\n
V\u00ed d\u1ee5: Ng\u00e0y th\u1ee9 2 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 95237, ng\u00e0y th\u1ee9 3 l\u00e0 24301. T\u00ednh t\u1ed5ng \u0111\u1ea7u gi\u1ea3i \u0111\u1eb7c bi\u1ec7t s\u1ebd l\u00e0 2+9=11. Ta th\u1ea5y t\u1ed5ng n\u00e0y l\u1edbn h\u01a1n 10 n\u00ean s\u1ebd ti\u1ebfp t\u1ee5c c\u1ed9ng 2 ch\u1eef s\u1ed1 l\u1ea1i l\u00e0 1+1=2. C\u00e1c ng\u00e0y c\u00f2n l\u1ea1i trong tu\u1ea7n \u0111\u00f3 kh\u1ea3 n\u0103ng cao s\u1ebd v\u1ec1 ch\u1ea1m 2.<\/p>\n\n\n\n
T\u1ed5ng h\u1ee3p to\u00e0n t\u1eadp c\u00e1c c\u00e1ch b\u1eaft c\u1ea7u l\u00f4 mi\u1ec1n B\u1eafc s\u1ebd l\u00f4 \u0111\u1ec1 k\u00e9p v\u1ec1 chu\u1ea9n nh\u1ea5t hi\u1ec7n nay, c\u1ee5 th\u1ec3:<\/p>\n\n\n\n
\u2013 N\u1ebfu trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t c\u00f3 2 ch\u1eef s\u1ed1 \u0111\u1ea7u ho\u1eb7c 2 ch\u1eef s\u1ed1 gi\u1eefa \u0111\u1ec1u l\u00e0 k\u00e9p (2 s\u1ed1 gi\u1ed1ng nhau) th\u00ec ng\u01b0\u1eddi ch\u01a1i n\u00ean nu\u00f4i d\u00e0n \u0111\u1ec1 k\u00e9p trong 7 ng\u00e0y ti\u1ebfp.<\/p>\n\n\n\n
\u2013 N\u1ebfu trong k\u1ebft qu\u1ea3 gi\u1ea3i 7 xu\u1ea5t hi\u1ec7n 2 trong s\u1ed1 c\u00e1c b\u1ed9 s\u1ed1 sau: 05, 50, 16, 61, 27, 72, 38, 83, 49, 94 th\u00ec l\u00e0 b\u00e1o hi\u1ec7u \u0111\u1ec1 v\u1ec1 k\u00e9p ng\u00e0y h\u00f4m sau.<\/p>\n\n\n\n
\u2013 N\u1ebfu th\u1ea5y gi\u1ea3i 7 c\u00f3 s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 7.1 v\u00e0 s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i 7.4 ho\u1eb7c s\u1ed1 cu\u1ed1i c\u1ee7a gi\u1ea3i 7.1 v\u00e0 s\u1ed1 \u0111\u1ea7u c\u1ee7a gi\u1ea3i 7.4 l\u00e0 s\u1ed1 gi\u1ed1ng nhau th\u00ec b\u1ea1n h\u00e3y nu\u00f4i k\u00e9p trong 3 ng\u00e0y ti\u1ebfp theo.<\/p>\n\n\n\n
C\u00e1ch b\u1eaft c\u1ea7u l\u00f4 mi\u1ec1n B\u1eafc n\u00e0y \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 sau: Gi\u1ea3 s\u1eed 2 ng\u00e0y tr\u01b0\u1edbc \u0111\u1ec1 v\u1ec1 l\u00e0 AB v\u00e0 CD trong \u0111\u00f3 ta c\u00f3:<\/p>\n\n\n\n
A + B + X = 10 (ho\u1eb7c 20)<\/p>\n\n\n\n
C + D + Y = 20 (ho\u1eb7c 20)<\/p>\n\n\n\n
Ta s\u1ebd nu\u00f4i XY cho 3 ng\u00e0y ti\u1ebfp theo, n\u1ebfu 3 ng\u00e0y kh\u00f4ng v\u1ec1 th\u00ec ngh\u1ec9 ng\u00e0y th\u1ee9 4. N\u1ebfu ng\u00e0y th\u1ee9 5 l\u00f4 v\u1ec1 th\u00ec ngh\u1ec9 ng\u00e0y th\u1ee9 6, t\u00ednh c\u1ea7u ti\u1ebfp v\u00e0o ng\u00e0y th\u1ee9 7. Tuy nhi\u00ean n\u1ebfu c\u1ea3 5 ng\u00e0y m\u00e0 v\u1eabn kh\u00f4ng th\u1ea5y c\u1ea7u xu\u1ea5t hi\u1ec7n th\u00ec \u0111\u00e1nh v\u00e0o ng\u00e0y th\u1ee9 6, n\u1ebfu v\u1eabn kh\u00f4ng n\u1ed5 th\u00ec ng\u00e0y th\u1ee9 7 ngh\u1ec9 sau \u0111\u00f3 nu\u00f4i 3 ng\u00e0y ti\u1ebfp.<\/p>\n\n\n\n