N\u1ed9i dung<\/span><\/p>\n Tr\u01b0\u1edbc khi mu\u1ed1n tr\u1edf th\u00e0nh cao th\u1ee7 ch\u01a1i l\u00f4 \u0111\u1ec1 chuy\u00ean nghi\u1ec7p th\u00ec b\u1ea1n c\u1ea7n hi\u1ec3u m\u1ed9t v\u00e0i thu\u1eadt ng\u1eef c\u01a1 b\u1ea3n. Nh\u1eefng gi\u1ea3i m\u00e3 d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 hi\u1ec3u h\u01a1n v\u1ec1 ch\u00fang.<\/span><\/p>\n B\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 l\u00e0 g\u00ec? Gi\u1ea3i th\u00edch m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n th\u00ec \u0111\u00f3 l\u00e0 m\u1ed9t d\u00e0n c\u00e1c b\u1ed9 s\u1ed1 g\u1ed3m 2 ch\u1eef s\u1ed1. Ch\u00fang th\u01b0\u1eddng \u0111i c\u00f9ng v\u1edbi nhau v\u00e0 c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m gi\u1ed1ng nhau. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c c\u1eb7p s\u1ed1 \u0111\u1ec1 gi\u00fap ng\u01b0\u1eddi ch\u01a1i t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 \u0111\u1ec3 \u0111\u00e1nh theo tu\u1ea7n, theo th\u00e1ng ho\u1eb7c theo n\u0103m.<\/span><\/p>\n V\u00ed d\u1ee5: <\/em><\/strong>B\u1ed9 s\u1ed1 k\u00e9p b\u1eb1ng l\u00e0 b\u1ed9 s\u1ed1 c\u00f3 2 s\u1ed1 gi\u1ed1ng nhau, g\u1ed3m c\u00f3 c\u00e1c s\u1ed1 00,11, 22, 33, 44, 55, 66, 77, 88 v\u00e0 99.<\/span><\/p>\n B\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u t\u1ed5ng \u0111\u1ec1 l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c con s\u1ed1 m\u00e0 khi ta c\u1ed9ng 2 ch\u1eef s\u1ed1 \u0111\u00f3 th\u00ec \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u01b0 nhau. V\u00ed d\u1ee5 d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 h\u00ecnh dung h\u01a1n.<\/span><\/p>\n V\u00ed d\u1ee5:<\/em><\/strong><\/span><\/p>\n S\u1ed1 20 n\u1eb1m trong T\u1ed5ng 2 v\u00ec c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 2 + 0 = 2. T\u01b0\u01a1ng t\u1ef1 v\u1edbi 11, ta c\u00f3 1 + 1 = 2.<\/span><\/p>\n S\u1ed1 75 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 l\u00e0 7 + 5 = 12 . Tuy nhi\u00ean theo c\u00e1ch t\u00ednh c\u1ee7a b\u00e0i 3 c\u00e2y (b\u00e0i c\u00e0o) th\u00ec 7 + 5 = 12 t\u00ednh l\u00e0 2 \u0111i\u1ec3m. V\u00ec v\u1eady s\u1ed1 57 c\u0169ng n\u1eb1m trong t\u1ed5ng 2. T\u01b0\u01a1ng t\u1ef1 ta c\u0169ng c\u00f3 s\u1ed1 66 c\u00f3 6 + 6 = 12 c\u0169ng n\u1eb1m trong t\u1ed5ng 2.<\/span><\/p>\n Xem x\u00e9t l\u1ea1i th\u00ec c\u00e1c thu\u1eadt ng\u1eef trong l\u00f4 \u0111\u1ec1 c\u0169ng kh\u00f4ng qu\u00e1 kh\u00f3 hi\u1ec3u cho l\u1eafm. N\u1ebfu b\u1ea1n ch\u1ecbu kh\u00f3 b\u1ecf ch\u00fat th\u1eddi gian ra t\u00ecm hi\u1ec3u th\u00ec m\u1ecdi th\u1ee9 c\u0169ng kh\u00e1 l\u00e0 d\u1ec5 d\u00e0ng th\u00f4i.<\/span><\/p>\n D\u1ef1a tr\u00ean c\u00e1ch t\u00ednh c\u1ee7a b\u00e0i c\u00e0o th\u00ec ta c\u00f3 10 t\u1ed5ng \u0111\u1ec1, bao g\u1ed3m c\u00e1c t\u1ed5ng t\u1eeb 0 \u0111\u1ebfn 9. M\u1ed7i t\u1ed5ng c\u00f3 10 s\u1ed1. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/span><\/p>\n T\u1ed5ng 0 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 0 ho\u1eb7c 10. Bao g\u1ed3m c\u00e1c s\u1ed1: 00 \u2013 19 \u2013 91 \u2013 28 \u2013 82 \u2013 37 \u2013 73 \u2013 46 \u2013 64 \u2013 55<\/span><\/p>\n T\u1ed5ng 1 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 1 ho\u1eb7c 11. Bao g\u1ed3m : 01 \u2013 10 \u2013 29 \u2013 92 \u2013 38 \u2013 83 \u2013 47 \u2013 74 \u2013 56 \u2013 65<\/span><\/p>\n T\u1ed5ng 2 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 2 ho\u1eb7c 12. C\u1ee5 th\u1ec3 l\u00e0: 20 \u2013 02 \u2013 39 \u2013 93 \u2013 48 \u2013 84 \u2013 57 \u2013 75 \u2013 66 \u2013 11.<\/span><\/p>\n T\u1ed5ng 3 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 3 ho\u1eb7c 13. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1: 03 \u2013 30 \u2013 12 \u2013 21 \u2013 49 \u2013 94 \u2013 58 \u2013 85 \u2013 67 \u2013 76.<\/span><\/p>\n T\u1ed5ng 4 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 4 ho\u1eb7c 14. G\u1ed3m c\u00e1c s\u1ed1 sau: 04 \u2013 40 \u2013 13 \u2013 31 \u2013 22 \u2013 59 \u2013 95 \u2013 68 \u2013 86 \u2013 77.<\/span><\/p>\n T\u1ed5ng 5 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 5 ho\u1eb7c 15. C\u00f3 c\u00e1c s\u1ed1: 05 \u2013 50 \u2013 14 \u2013 41 \u2013 23 \u2013 32 \u2013 69 \u2013 96 \u2013 78 \u2013 87.<\/span><\/p>\n T\u1ed5ng 6 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 6 ho\u1eb7c 16. Bao g\u1ed3m c\u00e1c s\u1ed1: 06 \u2013 60 \u2013 15 \u2013 51 \u2013 24 \u2013 42 \u2013 33 \u2013 79 \u2013 97 \u2013 88.<\/span><\/p>\n T\u1ed5ng 7 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 7 ho\u1eb7c 17. C\u1ee5 th\u1ec3 nh\u01b0: 07 \u2013 70 \u2013 16 \u2013 61 \u2013 25 \u2013 52 \u2013 34 \u2013 43 \u2013 89 \u2013 98.<\/span><\/p>\n T\u1ed5ng 8 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 8 ho\u1eb7c 18. C\u00e1c s\u1ed1 \u0111\u00f3 l\u00e0: 08 \u2013 80 \u2013 17 \u2013 71 \u2013 26 \u2013 62 \u2013 35 \u2013 53 \u2013 44 \u2013 99<\/span><\/p>\n T\u1ed5ng 9 l\u00e0 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng 9. Bao g\u1ed3m nh\u1eefng s\u1ed1 sau: 09 \u2013 90 \u2013 18 \u2013 81 \u2013 27 \u2013 72 \u2013 36 \u2013 63 \u2013 45 \u2013 54<\/span><\/p>\n B\u1ea1n c\u00f3 bi\u1ebft t\u1eadp h\u1ee3p c\u00e1c b\u1ed9 s\u1ed1 \u0111\u1ec1<\/strong> l\u00e0 nh\u01b0 th\u1ebf n\u00e0o kh\u00f4ng? D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng h\u1ee3p c\u00e1c b\u1ed9 s\u1ed1 trong l\u00f4 \u0111\u1ec1 m\u00e0 b\u1ea1n n\u00ean n\u1eafm r\u00f5 tr\u01b0\u1edbc khi tham gia v\u00e0o tr\u00f2 ch\u01a1i may r\u1ee7i n\u00e0y.<\/span><\/p>\n B\u1ea1n c\u1ea7n ghi nh\u1edb, trong l\u00f4 \u0111\u1ec1 c\u00f3 15 b\u1ed9 s\u1ed1 c\u01a1 b\u1ea3n nh\u01b0 sau:<\/span><\/p>\n B\u1ed9 01 g\u1ed3m 8 s\u1ed1: 01, 10, 06, 60, 51, 15, 56, 65.<\/span><\/p>\n B\u1ed9 02 g\u1ed3m 8 s\u1ed1: 02, 20, 07, 70, 52, 25, 57, 75.<\/span><\/p>\n B\u1ed9 03 g\u1ed3m 8 s\u1ed1: 03, 30, 08, 80, 53, 35, 58, 85.<\/span><\/p>\n B\u1ed9 04 g\u1ed3m 8 s\u1ed1: 04, 40, 09, 90, 54, 45, 59, 95.<\/span><\/p>\n B\u1ed9 12 g\u1ed3m 8 s\u1ed1:12, 21, 17, 71, 62, 26, 67, 76.<\/span><\/p>\n B\u1ed9 13 g\u1ed3m 8 s\u1ed1: 13, 31, 18, 81, 63, 36, 68, 86.<\/span><\/p>\n B\u1ed9 14 g\u1ed3m 8 s\u1ed1: 14, 41, 19, 91, 64, 46, 69, 96.<\/span><\/p>\n B\u1ed9 23 g\u1ed3m 8 s\u1ed1: 23, 32, 28, 82, 73, 37, 78, 87.<\/span><\/p>\n B\u1ed9 24 g\u1ed3m 8 s\u1ed1: 24, 42, 29, 92, 74, 47, 79, 97.<\/span><\/p>\n B\u1ed9 34 g\u1ed3m 8 s\u1ed1: 34, 43, 39, 93, 84, 48, 89, 98.<\/span><\/p>\n B\u1ed9 00 g\u1ed3m 4 s\u1ed1:00, 55, 05, 50.<\/span><\/p>\n B\u1ed9 11 g\u1ed3m 4 s\u1ed1: 11, 66, 16, 61.<\/span><\/p>\n B\u1ed9 22 g\u1ed3m 4 s\u1ed1: 22, 77, 27, 72.<\/span><\/p>\n B\u1ed9 33 g\u1ed3m 4 s\u1ed1: 33, 88, 38, 83.<\/span><\/p>\n B\u1ed9 44 g\u1ed3m 4 s\u1ed1: 44, 99, 49, 94.<\/span><\/p>\n Ngo\u00e0i c\u00e1c b\u1ed9 s\u1ed1 \u0111\u1ec1 \u1edf tr\u00ean th\u00ec c\u00e1c c\u1eb7p s\u1ed1 trong l\u00f4 \u0111\u1ec1 c\u00f2n tu\u00e2n theo 12 con gi\u00e1p n\u1eefa. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/span><\/p>\n T\u00fd (9 s\u1ed1): 00, 12, 24, 36, 48, 60, 72, 84, 96.<\/span><\/p>\n S\u1eedu (9 s\u1ed1): 01, 13, 25, 37, 49, 61, 73, 85, 97.<\/span><\/p>\n D\u1ea7n (9 s\u1ed1): 02, 14, 26, 38, 50, 62, 74, 86, 98.<\/span><\/p>\n M\u1eb9o (9 s\u1ed1): 03, 15, 27, 39, 51, 63, 75, 87, 99.<\/span><\/p>\n Th\u00ecn (8 s\u1ed1): 04, 16, 28, 40, 52, 64, 76, 88.<\/span><\/p>\n T\u1ef5 (8 s\u1ed1): 05, 17, 29, 41, 53, 65, 77, 89.<\/span><\/p>\n Ng\u1ecd (8 s\u1ed1): 06, 18, 30, 42, 54, 66, 78, 90.<\/span><\/p>\n M\u00f9i: (8 s\u1ed1): 07, 19, 31, 43, 55, 67, 79, 91.<\/span><\/p>\n Th\u00e2n: (8 s\u1ed1): 08, 20, 32, 44, 56, 68, 80, 92.<\/span><\/p>\n D\u1eadu (8 s\u1ed1): 09, 21, 33, 45, 57, 69, 81, 93.<\/span><\/p>\n Tu\u1ea5t (8 s\u1ed1): 10, 22, 34, 46, 58, 70, 82, 94.<\/span><\/p>\n H\u1ee3i (8 s\u1ed1): 11, 23, 35, 47, 59, 71, 83, 95.<\/span><\/p>\n \u0110\u1ec3 ch\u01a1i \u0111\u1ec1 b\u00e1ch ph\u00e1t b\u00e1ch tr\u00fang th\u00ec b\u1ea1n c\u1ea7n hi\u1ec3u r\u00f5 nh\u1eefng c\u1eb7p s\u1ed1 n\u00e0o hay \u0111i hay v\u1ec1 c\u00f9ng nhau. C\u00f3 v\u1eady th\u00ec m\u1edbi mong n\u1ed5 h\u0169 l\u1edbn, mang t\u00e0i l\u1ed9c v\u1ec1 nh\u00e0.<\/span><\/p>\n C\u00f9ng tham kh\u1ea3o m\u1ed9t v\u00e0i c\u1eb7p s\u1ed1 \u0111\u1ec1 ti\u00eau bi\u1ec3u hay \u0111i c\u00f9ng nhau nh\u01b0 sau:<\/span><\/p>\n 373 \u2013 010, 76-47, 11-44, 66-33, 848-979, 51- 15, 75-57, 25-22, 52-22,\u2026<\/span><\/p>\n Hay 18, 81 h\u00f4m tr\u01b0\u1edbc ra \u1edf gi\u1ea3i nh\u1ea5t th\u00ec h\u00f4m sau c\u00f3 97, 99 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/p>\n 45 h\u00f4m nay ra th\u00ec h\u00f4m sau c\u00f3 l\u00f4 t\u00f4 595 hay 09.<\/span><\/p>\n 58 h\u00f4m nay m\u00e0 ra th\u00ec 3 h\u00f4m sau s\u1ebd c\u00f3 63.<\/span><\/p>\n 68 h\u00f4m nay ra th\u00ec h\u00f4m sau s\u1ebd tr\u1ea3 l\u1ea1i 86.<\/span><\/p>\n H\u00f4m tr\u01b0\u1edbc c\u00f3 l\u00f4 00 th\u00ec h\u00f4m sau c\u00f3 l\u00f4 99.<\/span><\/p>\n Gi\u1ea3i nh\u1ea5t ho\u1eb7c gi\u1ea3i nh\u00ec l\u00e0 l\u00f4 18 th\u00ec h\u00f4m sau c\u00f3 l\u00f4 99.<\/span><\/p>\n H\u00f4m tr\u01b0\u1edbc c\u00f3 l\u00f4 15 ho\u1eb7c 51 h\u00f4m sau th\u01b0\u1eddng tr\u1ea3 l\u1ea1i c\u1ea3 c\u1eb7p ho\u1eb7c 15 or 51.<\/span><\/p>\n H\u00f4m tr\u01b0\u1edbc c\u00f3 l\u00f4 86 th\u00ec h\u00f4m sau c\u00f3 l\u00f4 68 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/p>\n \u0110\u1ea7u 6 c\u00e2m th\u00ec h\u00f4m sau c\u00f3 l\u00f4 61 (100%). Ho\u1eb7c ng\u00e0y th\u1ee9 2 l\u00e0 h\u1ebft.<\/span><\/p>\n \u0110\u1ea7u 3 c\u00e2m th\u00ec h\u00f4m sau c\u00f3 l\u00f4 33 (100%). Ho\u1eb7c h\u1ebft v\u00e0o ng\u00e0y th\u1ee9 2.<\/span><\/p>\n Khi \u0111\u1ec1 ra 95 th\u00ec h\u00f4m sau c\u00f3 l\u00f4 05 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/p>\n Khi \u0111\u1ec1 ra 02 th\u00ec h\u00f4m sau c\u00f3 l\u00f4 18 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/span><\/p>\n Ngo\u00e0i ra, c\u00e1c b\u1ea1n c\u0169ng c\u1ea7n ph\u1ea3i nghi\u00ean c\u1ee9u c\u00e1c c\u1eb7p s\u1ed1 \u0111\u1ec1 hay v\u1ec1 c\u00f9ng nhau \u0111\u1ec3 ti\u1ec7n cho vi\u1ec7c nu\u00f4i l\u00f4 \u0111\u00e1nh cho nhi\u1ec1u ng\u00e0y.<\/span><\/p>\n V\u00ed d\u1ee5: H\u00f4m nay ra l\u00f4 787 th\u00ec h\u00f4m sau ra l\u00f4 484. T\u01b0\u01a1ng t\u1ef1 ra c\u00f3 c\u00e1c c\u1eb7p s\u1ed1:<\/span><\/p>\n 484 v\u1ec1 v\u1edbi 464 v\u00e0 050, 363-383, 060-898, 242-272, 747-797, 797-737, 232-343, 383-767, 545-565, 565-595, 02-121,\u2026<\/span><\/p>\n M\u1ecdi ng\u01b0\u1eddi c\u0169ng c\u00f3 th\u1ec3 tham kh\u1ea3o th\u00eam m\u1ed9t s\u1ed1 c\u1eb7p l\u00f4 hay v\u1ec1 theo c\u00e1c th\u1ee9 trong tu\u1ea7n nh\u01b0 sau:<\/span><\/p>\n 33 th\u01b0\u1eddng v\u1ec1 v\u00e0o Th\u1ee9 2, Th\u1ee9 3, Th\u1ee9 7, Ch\u1ee7 nh\u1eadt.<\/span><\/p>\n 56 th\u01b0\u1eddng v\u00e0o Th\u1ee9 5, Ch\u1ee7 nh\u1eadt.<\/span><\/p>\n 97 th\u01b0\u1eddng v\u1ec1 Th\u1ee9 5 v\u00e0 Th\u1ee9 7.<\/span><\/p>\n C\u1eb7p l\u00f4 898 th\u01b0\u1eddng v\u1ec1 v\u00e0o Th\u1ee9 7 v\u00e0 Ch\u1ee7 nh\u1eadt.<\/span><\/p>\n 66 th\u01b0\u1eddng v\u1ec1 Th\u1ee9 4, Th\u1ee9 5,Th\u1ee9 6.<\/span><\/p>\n 66 ra h\u00f4m tr\u01b0\u1edbc th\u00ec h\u00f4m sau th\u01b0\u1eddng s\u1ebd ra l\u1ea1i.<\/span><\/p>\n\n
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\u0110\u1ecbnh ngh\u0129a v\u1ec1 b\u1ed9 s\u1ed1 \u0111\u1ec1<\/strong><\/span><\/span><\/h2>\n
B\u1ed9 l\u00f4 \u0111\u1ec1 l\u00e0 g\u00ec?<\/strong><\/span><\/span><\/h3>\n
T\u1ed5ng \u0111\u1ec1 l\u00e0 g\u00ec?<\/strong><\/span><\/span><\/h3>\n
T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c t\u1ed5ng trong l\u00f4 \u0111\u1ec1<\/strong><\/span><\/span><\/h3>\n
<\/span><\/div>\n
T\u00e2p h\u1ee3p c\u00e1c b\u1ed9 l\u00f4 \u0111\u1ec1<\/strong><\/span><\/span><\/h2>\n
C\u00e1c b\u1ed9 l\u00f4 \u0111\u1ec1 c\u01a1 b\u1ea3n<\/strong><\/span><\/span><\/h3>\n
B\u1ed9 l\u00f4 \u0111\u1ec1 theo 12 con gi\u00e1p<\/strong><\/span><\/span><\/h3>\n
<\/span><\/p>\n
M\u00e1ch b\u1ea1n c\u00e1c c\u1eb7p l\u00f4 \u0111\u1ec1 may m\u1eafn<\/strong><\/span><\/span><\/h2>\n
C\u00e1c c\u1eb7p l\u00f4 \u0111\u1ec1 hay \u0111i k\u00e8m v\u1edbi nhau<\/strong><\/span><\/span><\/h3>\n
M\u1ed9t s\u1ed1 c\u1eb7p l\u00f4 \u0111\u1ec1 ph\u1ed5 bi\u1ebfn hay v\u1ec1 c\u00f9ng nhau<\/strong><\/span><\/span><\/h3>\n
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C\u1eb7p l\u00f4 \u0111\u1ec1 hay ra theo th\u1ee9 trong tu\u1ea7n<\/strong><\/span><\/span><\/h3>\n