D\u00e0n \u0111\u1ec1 50 s\u1ed1 nu\u00f4i khung 3 ng\u00e0y c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i nh\u01b0. D\u00e0n \u0111\u1ec1 \u0111\u1ea7u b\u00e9, d\u00e0n \u0111\u1ec1 \u0111\u1ea7u l\u1edbn, d\u00e0n \u0111\u1ec1 \u0111u\u00f4i l\u1edbn, d\u00e0n \u0111\u1ec1 \u0111u\u00f4i b\u00e9, d\u00e0n \u0111\u1ec1 \u0111\u1ea7u ch\u1eb5n, d\u00e0n \u0111\u1ec1 \u0111\u1ea7u l\u1ebb, d\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n, d\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1ebb, d\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn, d\u00e0n \u0111\u1ec1 t\u1ed5ng b\u00e9 \u2026 D\u01b0\u1edbi \u0111\u00e2y ch\u00fang t\u00f4i ph\u00e2n t\u00edch k\u0129 c\u00e0ng. \u0110\u01b0a ra 1 s\u1ed1 d\u00e0n \u0111\u1ec1 50 s\u1ed1 \u0111\u1eb7c bi\u1ec7t b\u1ea5t b\u1ea1i cho c\u00e1c b\u1ea1n tham kh\u1ea3o.<\/span><\/p>\n L\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean (hay c\u00f2n g\u1ecdi l\u00e0 ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c) l\u00e0 s\u1ed1 b\u00e9 (s\u1ed1 nh\u1ecf, s\u1ed1 th\u1ea5p = 0, 1, 2, 3, ,4). C\u00f2n ch\u1eef s\u1ed1 \u0111u\u00f4i (hay c\u00f2n g\u1ecdi l\u00e0 ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb) c\u00f3 th\u1ec3 l\u00e0 ch\u1eef s\u1ed1 n\u00e0o b\u1ea5t k\u00ec.<\/span><\/p>\n 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49<\/span><\/p>\n L\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c l\u00e0 s\u1ed1 l\u1edbn (s\u1ed1 l\u1edbn, s\u1ed1 cao = 5,6,7,8,9).<\/span><\/p>\n 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99<\/span><\/p>\n L\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c l\u00e0 s\u1ed1 ch\u1eb5n. C\u00f2n ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 c\u1ea3 s\u1ed1 ch\u1eb5n v\u00e0 l\u1ebb<\/span><\/p>\n 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89<\/span><\/p>\n L\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c l\u00e0 s\u1ed1 l\u1ebb<\/span><\/p>\n 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99<\/span><\/p>\n D\u00e0n \u0111\u1ec1 \u0111u\u00f4i b\u00e9 l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 s\u1ed1 b\u00e9 ( s\u1ed1 nh\u1ecf, s\u1ed1 th\u1ea5p = 0,1,2,3,4)<\/span><\/p>\n 00,01,02,03,04,10,11,12,13,14,20,21,22,23,24,30,31,32,33,34,40,41,42,43,44,50,51,52,53,54,60,61,62,63,64,70,71,72,73,74,80,81,82,83,84,90,91,92,93,94<\/span><\/p>\n <\/p>\n D\u00e0n \u0111\u1ec1 \u0111u\u00f4i l\u1edbn l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 s\u1ed1 l\u1edbn (s\u1ed1 to, s\u1ed1 cao = 5,6,7,8,9)<\/span><\/p>\n 05, 06, 07, 08, 09, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 35, 36, 37, 38, 39, 45, 46, 47, 48, 49, 55, 56, 57, 58, 59, 65, 66, 67, 68, 69, 75, 76, 77, 78, 79, 85, 86, 87, 88, 89, 95, 96, 97, 98, 99<\/span><\/p>\n D\u00e0n \u0111\u1ec1 \u0111u\u00f4i ch\u1eb5n l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 s\u1ed1 ch\u1eb5n.<\/span><\/p>\n 00, 02, 04, 06, 08, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98<\/span><\/p>\n D\u00e0n \u0111\u1ec1 \u0111u\u00f4i l\u1ebb l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 g\u1ed3m t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb l\u00e0 s\u1ed1 l\u1ebb.<\/span><\/p>\n 01, 03, 05, 07, 09, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99<\/span><\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1, trong \u0111\u00f3 t\u1ed5ng c\u1ee7a 2 ch\u1eef s\u1ed1 b\u1eb1ng m\u1ed9t s\u1ed1 ch\u1eb5n. V\u00ed d\u1ee5: s\u1ed1 00 th\u00ec 0 + 0 = 0 ( 0 l\u00e0 s\u1ed1 ch\u1eb5n) , s\u1ed1 99 th\u00ec 9 + 9 = 18 (18 l\u00e0 s\u1ed1 ch\u1eb5n).<\/span><\/p>\n 00, 02, 04, 06, 08, 11, 13, 15, 17, 19, 20, 22, 24, 26, 28, 31, 33, 35, 37, 39, 40, 42, 44, 46, 48, 51, 53, 55, 57, 59, 60, 62, 64, 66, 68, 71, 73, 75, 77, 79, 80, 82, 84, 86, 88, 91, 93, 95, 97, 99<\/span><\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1ebb l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1, trong \u0111\u00f3 t\u1ed5ng c\u1ee7a 2 ch\u1eef s\u1ed1 b\u1eb1ng m\u1ed9t s\u1ed1 l\u1ebb. V\u00ed d\u1ee5: s\u1ed1 01 th\u00ec 0 + 1 = 1 ( 1 l\u00e0 s\u1ed1 ch\u1eb5n) , s\u1ed1 98 th\u00ec 9 + 8 = 17 (17 l\u00e0 s\u1ed1 l\u1ebb)<\/span><\/p>\n 01, 03, 05, 07, 09, 10, 12, 14, 16, 18, 21, 23, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 45, 47, 49, 50, 52, 54, 56, 58, 61, 63, 65, 67, 69, 70, 72, 74, 76, 78, 81, 83, 85, 87, 89, 90, 92, 94, 96, 98<\/span><\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng b\u00e9 l\u00e0 m\u1ed9t d\u00e0n \u0111\u1ec1 c\u00f3 50 s\u1ed1. Trong \u0111\u00f3 t\u1ed5ng c\u1ee7a 2 ch\u1eef s\u1ed1 trong 1 s\u1ed1 l\u00e0: 0, 1, 2, 3, 4, 10, 11, 12, 13, 14. V\u00ed d\u1ee5: s\u1ed1 01 th\u00ec 0+1 = 1 (1 l\u00e0 s\u1ed1 b\u00e9) , s\u1ed1 94 th\u00ec 9+4=13 (th\u1ef1c ch\u1ea5t th\u00ec s\u1ed1 13 ta ch\u1ec9 t\u00ednh s\u1ed1 3, v\u1eady n\u00ean \u0111\u00e2y v\u1eabn \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ed5ng b\u00e9)<\/span><\/p>\n 00, 01, 02, 03, 04, 10, 11, 12, 13, 19, 20, 21, 22, 28, 29, 30, 31, 37, 38, 39, 40, 46, 47, 48, 49, 55, 56, 57, 58, 59, 64, 65, 66, 67, 68, 73, 74, 75, 76, 77, 82, 83, 84, 85, 86, 91, 92, 93, 94, 95<\/span><\/p>\n <\/p>\n D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn l\u00e0 m\u1ed9t d\u00e0n \u0111\u1ec1 c\u00f3 50 s\u1ed1. Trong \u0111\u00f3 t\u1ed5ng c\u1ee7a 2 ch\u1eef s\u1ed1 trong 1 s\u1ed1 l\u00e0: 5, 6, 7, 8, 9, 15, 16, 17, 18, 19. V\u00ed d\u1ee5: s\u1ed1 06 th\u00ec 0+6 = 6 (6 l\u00e0 s\u1ed1 l\u1edbn) , s\u1ed1 98 th\u00ec 9+8=17 (th\u1ef1c ch\u1ea5t th\u00ec s\u1ed1 17 ta ch\u1ec9 t\u00ednh s\u1ed1 7, v\u1eady n\u00ean \u0111\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ed1 t\u1ed5ng l\u1edbn) .D\u00e0n \u0111\u1ec1 n\u00e0y hay \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi ch\u01a1i nhi\u1ec1u, ch\u1eafc b\u1edfi v\u00ec n\u00f3 nhi\u1ec1u s\u1ed1 l\u1edbn v\u00e0 bao g\u1ed3m nhi\u1ec1u s\u1ed1 \u0111\u1eb9p. D\u00e0n \u0111\u1ec1 50 s\u1ed1 \u0111\u1eb7c bi\u1ec7t n\u00e0y nu\u00f4i khung 3 ng\u00e0y c\u0169ng r\u1ea5t ok. N\u00ean d\u00e0n \u0111\u1ec1 n\u00e0y c\u0169ng l\u00e0 1 trong d\u00e0n \u0111\u1ec1 50 s\u1ed1 b\u1ea5t b\u1ea1i.<\/span><\/p>\n 05, 06, 07, 08, 09, 14, 15, 16, 17, 18, 23, 24, 25, 26, 27, 32, 33, 34, 35, 36, 41, 42, 43, 44, 45, 50, 51, 52, 53, 54, 60, 61, 62, 63, 69, 70, 71, 72, 78, 79, 80, 81, 87, 88, 89, 90, 96, 97, 98, 99<\/span><\/p>\n T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00e0n \u0111\u1ec1 t\u1ed5ng, th\u00ec d\u00e0n \u0111\u1ec1 hi\u1ec7u b\u00e9 l\u00e0 d\u00e0n \u0111\u1ec1 g\u1ed3m 50 s\u1ed1. Ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c tr\u1eeb \u0111i ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb ta \u0111\u01b0\u1ee3c hi\u1ec7u b\u1eb1ng: 0,1,2,3,4. Trong \u0111\u00f3 khi ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c b\u00e9 h\u01a1n ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb th\u00ec s\u1ebd \u0111\u01b0\u1ee3c + th\u00eam 10 \u0111\u1ec3 k\u1ebft qu\u1ea3 ra s\u1ed1 d\u01b0\u01a1ng.<\/span><\/p>\n V\u00ed d\u1ee5:<\/span><\/p>\n \u2013 S\u1ed1 11 th\u00ec 1-1=0 (0 l\u00e0 s\u1ed1 b\u00e9)<\/span><\/p>\n \u2013 S\u1ed1 39 th\u00ec ( v\u00ec 3-9 ra k\u1ebft qu\u1ea3 s\u1ed1 \u00e2m) ta c\u00f3: (3+10)-9=13-9=4 (4 l\u00e0 s\u1ed1 b\u00e9)<\/span><\/p>\n 00, 11, 22, 33, 44, 55, 66, 77, 88, 99, 09, 10, 21, 32, 43, 54, 65, 76, 87, 98, 08, 19, 20, 31, 42, 53, 64, 75, 86, 97, 07, 18, 29, 30, 41, 52, 63, 74, 85, 96, 06, 17, 28, 39, 40, 51, 62, 73, 84, 95<\/span><\/p>\n T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00e0n \u0111\u1ec1 hi\u1ec7u b\u00e9, th\u00ec d\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1edbn l\u00e0 d\u00e0n \u0111\u1ec1 g\u1ed3m 50 s\u1ed1. Ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c tr\u1eeb \u0111i ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb ta \u0111\u01b0\u1ee3c hi\u1ec7u b\u1eb1ng: 5,6,7,8,9. Trong \u0111\u00f3 khi ch\u1eef s\u1ed1 h\u00e0ng ch\u1ee5c b\u00e9 h\u01a1n ch\u1eef s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb th\u00ec s\u1ebd \u0111\u01b0\u1ee3c + th\u00eam 10 \u0111\u1ec3 k\u1ebft qu\u1ea3 ra s\u1ed1 d\u01b0\u01a1ng.<\/span><\/p>\n V\u00ed d\u1ee5:<\/span><\/p>\n \u2013 S\u1ed1 05 th\u00ec ( v\u00ec 0-5 ra k\u1ebft qu\u1ea3 s\u1ed1 \u00e2m) (0+10)-1=9 (9 l\u00e0 s\u1ed1 l\u1edbn)<\/span><\/p>\n \u2013 S\u1ed1 91 th\u00ec ta c\u00f3: 9-1=8 (8 l\u00e0 s\u1ed1 l\u1edbn)<\/span><\/p>\n 05, 16, 27, 38, 49, 50, 61, 72, 83, 94, 04, 15, 26, 37, 48, 59, 60, 71, 82, 93, 03, 14, 25, 36, 47, 58, 69, 70, 81, 92, 02, 13, 24, 35, 46, 57, 68, 79, 80, 91, 01, 12, 23, 34, 45, 56, 67, 78, 89, 90<\/span><\/p>\n T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1edbn, hi\u1ec7u b\u00e9 th\u00ec d\u00e0n \u0111\u1ec1 hi\u1ec7u ch\u1eb5n g\u1ed3m c\u00e1c s\u1ed1 d\u01b0\u1edbi \u0111\u00e2y.<\/span><\/p>\n 00, 55, 11, 66, 22, 77, 33, 88, 44, 99, 02, 20, 13, 31, 24, 42, 35, 53, 46, 64, 57, 75, 68, 86, 79, 97, 04, 40, 15, 51, 26, 62, 37, 73, 48, 84, 59, 95, 06, 60, 17, 71, 28, 82, 39, 93, 08, 80, 19, 91<\/span><\/p>\n T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1edbn, hi\u1ec7u b\u00e9 th\u00ec d\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1ebb g\u1ed3m c\u00e1c s\u1ed1 d\u01b0\u1edbi \u0111\u00e2y.<\/span><\/p>\n 01, 10, 12, 21, 23, 32, 34, 43, 45, 54, 56, 65, 67, 76, 78, 87, 89, 98, 03, 30, 14, 41, 25, 52, 36, 63, 47, 74, 58, 85, 69, 96, 05, 50, 16, 61, 27, 72, 38, 83, 49, 94, 07, 70, 18, 81, 29, 92, 09, 90<\/span><\/p>\n <\/p>\n D\u00e0n \u0111\u1ec1 n\u00e0y l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p bao g\u1ed3m 3 d\u00e0n \u0111\u1ec1 ch\u1ea1m bao g\u1ed3m 51 s\u1ed1. C\u00f3 th\u1ec3 g\u1ecdi l\u00e0 d\u00e0n \u0111\u1ec1 ph\u00e1 c\u00e1ch c\u1ee7a d\u00e0n \u0111\u1ec1 50 s\u1ed1. D\u00e0n \u0111\u1ec1 n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi ch\u01a1i nhi\u1ec1u. D\u00e0n \u0111\u1ec1 50 s\u1ed1 \u0111\u1eb7c bi\u1ec7t n\u00e0y nu\u00f4i khung 3 ng\u00e0y c\u0169ng r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng. N\u00f3 d\u1ec5 hi\u1ec3u v\u00e0 d\u1ec5 v\u00e2y s\u1ed1 khi ch\u01a1i.<\/span><\/p>\n V\u00ed d\u1ee5:<\/span><\/p>\n D\u00e0n \u0111\u1ec1 3 ch\u1ea1m 1-2-3 (g\u1ed3m ch\u1ea1m 1 + ch\u1ea1m 2 + ch\u1ea1m 3)<\/span><\/p>\n 01, 10, 11, 21, 12, 31, 13, 41, 14, 51, 15, 61, 16, 71, 17, 81, 18, 91, 19, 02, 20, 22, 32, 23, 42, 24, 52, 25, 62, 26, 72, 27, 82, 28, 92, 29, 03, 30, 33, 43, 34, 53, 35, 63, 36, 73, 37, 83, 38, 93, 39<\/span><\/p>\n D\u00e0n \u0111\u1ec1 50 s\u1ed1 \u0111\u1eb7c bi\u1ec7t. \u0110\u00e2y c\u0169ng c\u00f3 th\u1ec3 xem l\u00e0 d\u00e0n \u0111\u1ec1 50 s\u1ed1 b\u1ea5t b\u1ea1i.<\/span><\/p>\n 03, 30, 13, 31, 23, 32, 33, 43, 34, 53, 35, 63, 36, 73, 37, 83, 38, 93, 39, 04, 40, 14, 41, 24, 42, 44, 54, 45, 64, 46, 74, 47, 84, 48, 94, 49, 05, 50, 15, 51, 25, 52, 55, 65, 56, 75, 57, 85, 58, 95, 59<\/span><\/p>\n 06, 60, 16, 61, 26, 62, 36, 63, 46, 64, 56, 65, 66, 76, 67, 86, 68, 96, 69, 07, 70, 17, 71, 27, 72, 37, 73, 47, 74, 57, 75, 77, 87, 78, 97, 79, 08, 80, 18, 81, 28, 82, 38, 83, 48, 84, 58, 85, 88, 98, 89<\/span><\/p>\n 03, 30, 13, 31, 23, 32, 33, 43, 34, 53, 35, 63, 36, 73, 37, 83, 38, 93, 39, 07, 70, 17, 71, 27, 72, 47, 74, 57, 75, 67, 76, 77, 87, 78, 97, 79, 09, 90, 19, 91, 29, 92, 49, 94, 59, 95, 69, 96, 89, 98, 99<\/span><\/p>\n 03, 30, 13, 31, 23, 32, 33, 43, 34, 53, 35, 63, 36, 73, 37, 83, 38, 93, 39, 06, 60, 16, 61, 26, 62, 46, 64, 56, 65, 66, 76, 67, 86, 68, 96, 69, 08, 80, 18, 81, 28, 82, 48, 84, 58, 85, 78, 87, 88, 98, 89<\/span><\/p>\n C\u00e1c b\u1ea1n c\u00f3 th\u1ec3 xem th\u1ed1ng k\u00ea, \u0111\u1ec3 bi\u1ebft t\u00ecnh h\u00ecnh c\u00e1c s\u1ed1, c\u00e1c \u0111\u1ea7u, c\u00e1c \u0111\u00edt c\u00e1c ng\u00e0y g\u1ea7n \u0111\u00e2y v\u1ec1 nh\u01b0 th\u1ebf n\u00e0o.<\/span><\/p>\nD\u00e0n \u0111\u1ec1 \u0111\u1ea7u b\u00e9 (\u0111\u1ea7u nh\u1ecf)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111\u1ea7u l\u1edbn (\u0111\u1ea7u to)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111\u1ea7u ch\u1eb5n<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111\u1ea7u l\u1ebb<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111u\u00f4i b\u00e9 (\u0111u\u00f4i nh\u1ecf)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111u\u00f4i l\u1edbn (\u0111u\u00f4i to)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111u\u00f4i ch\u1eb5n<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 \u0111u\u00f4i l\u1ebb<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng ch\u1eb5n<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1ebb<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng b\u00e9 (t\u1ed5ng nh\u1ecf)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 t\u1ed5ng l\u1edbn<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 hi\u1ec7u b\u00e9<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1edbn<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 hi\u1ec7u ch\u1eb5n<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 hi\u1ec7u l\u1ebb<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 3 ch\u1ea1m ( d\u00e0n \u0111\u1ec1 50 +1 s\u1ed1)<\/span><\/h3>\n
C\u00e1c d\u00e0n \u0111\u1ec1 3 ch\u1ea1m \u0111\u1eb7c bi\u1ec7t<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 3 ch\u1ea1m 3-4-5 (b\u1ea1n b\u00e8 n\u1ec3)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 3 ch\u1ea1m 6-7-8 (san b\u1eb1ng t\u1ea5t)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 3 ch\u1ea1m 3-7-9 (Th\u1ea7n t\u00e0i)<\/span><\/h3>\n
D\u00e0n \u0111\u1ec1 3 ch\u1ea1m 3-6-9 (t\u00e0i l\u1ed9c \u0111\u1ec9nh)<\/span><\/h3>\n