B\u00f3ng s\u1ed1 \u0111\u1ec1, b\u00f3ng \u00e2m, b\u00f3ng d\u01b0\u01a1ng, b\u1ed9 s\u1ed1 b\u00f3ng l\u00e0 nh\u1eefng kh\u00e1i ni\u1ec7m v\u00e0 b\u1ed9 s\u1ed1 c\u1ef1c k\u1ef3 c\u0103n b\u1ea3n m\u00e0 b\u1ea5t c\u1ee9 ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 n\u00e0o c\u0169ng ph\u1ea3i n\u1eafm r\u00f5. M\u1ed9t s\u1ed1 n\u01a1i c\u00f2n g\u1ecdi c\u00e1c b\u1ed9 s\u1ed1 n\u00e0y l\u00e0 \u201ch\u1ec7\u201d. Ph\u1ea7n l\u1edbn ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 \u0111\u1ec1u \u00e1p d\u1ee5ng c\u00e1c b\u1ed9 s\u1ed1 n\u00e0y, k\u1ec3 c\u1ea3 ch\u01a1i l\u00f4 \u0111\u1ec1 truy\u1ec1n th\u1ed1ng hay khi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 online. V\u00ec v\u1eady Nh\u00e0 c\u00e1i online s\u1ebd h\u1ec7 th\u1ed1ng l\u1ea1i ki\u1ebfn th\u1ee9c v\u1ec1 b\u00f3ng \u00e2m, b\u00f3ng d\u01b0\u01a1ng hay b\u00f3ng c\u1ee7a c\u00e1c s\u1ed1 \u0111\u1ec1 trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 c\u00e1c b\u1ea1n m\u1edbi l\u00e0m quen v\u1edbi l\u00f4 \u0111\u1ec1 kh\u00f4ng b\u1ecb b\u1ee1 ng\u1ee1.<\/p>\n
B\u00d3NG \u0110\u1ec0 \u2013 B\u00d3NG S\u1ed0 \u0110\u1ec0<\/strong><\/span><\/span><\/h2>\nNg\u01b0\u1eddi ta chia b\u00f3ng s\u1ed1 \u0111\u1ec1 th\u00e0nh 2 lo\u1ea1i. \u0110\u00f3 l\u00e0 b\u00f3ng \u00e2m v\u00e0 b\u00f3ng d\u01b0\u01a1ng. B\u00f3ng \u00e2m v\u00e0 b\u00f3ng d\u01b0\u01a1ng \u0111\u1ec1u g\u1ed3m 5 c\u1eb7p s\u1ed1 kh\u00e1c nhau. Chi ti\u1ebft m\u1eddi c\u00e1c b\u1ea1n \u0111\u1ecdc ph\u1ea7n ti\u1ebfp theo.<\/p>\n
B\u00d3NG D\u01af\u01a0NG<\/strong><\/span><\/span><\/h3>\nB\u00f3ng d\u01b0\u01a1ng trong b\u00f3ng s\u1ed1 \u0111\u1ec1 g\u1ed3m c\u00f3 5 c\u1eb7p s\u1ed1 sau:<\/p>\n
\n- 1 v\u00e0 6 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 2 v\u00e0 7 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 3 v\u00e0 8 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 4 v\u00e0 9 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 0 v\u00e0 5 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n<\/ul>\n
B\u00d3NG \u00c2M<\/strong><\/span><\/span><\/h3>\nB\u00f3ng \u00e2m trong b\u00f3ng s\u1ed1 \u0111\u1ec1 c\u0169ng g\u1ed3m c\u00f3 5 c\u1eb7p s\u1ed1:<\/p>\n
\n- S\u1ed1 0 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 7<\/li>\n
- S\u1ed1 1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 4<\/li>\n
- S\u1ed1 2 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 9<\/li>\n
- S\u1ed1 3 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 6<\/li>\n
- S\u1ed1 5 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 8<\/li>\n<\/ul>\n
B\u1ed8 S\u1ed0 B\u00d3NG<\/strong><\/span><\/span><\/h2>\nB\u1ed9 s\u1ed1 b\u00f3ng l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng c\u1ee7a nhau ho\u1eb7c c\u00f3 1 s\u1ed1 gi\u1ed1ng nhau v\u00e0 1 s\u1ed1 l\u00e0 b\u00f3ng c\u1ee7a nhau.<\/p>\n
V\u00ed d\u1ee5:<\/strong><\/em><\/p>\n\n- 24 v\u00e0 29 c\u00f9ng c\u00f3 1 s\u1ed1 2. \u0110\u1ed3ng th\u1eddi 4 v\u00e0 9 c\u0169ng l\u00e0 b\u00f3ng c\u1ee7a nhau n\u00ean 24 v\u00e0 29 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n
- 37 v\u00e0 28 c\u00f3 3 v\u00e0 8, 2 v\u00e0 7 l\u00e0 2 c\u1eb7p s\u1ed1 b\u00f3ng c\u1ee7a nhau. V\u00ec v\u1eady 37 v\u00e0 28 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n<\/ul>\n
D\u1ef1a v\u00e0o c\u00e1ch chia b\u00f3ng s\u1ed1 \u0111\u1ec1, ng\u01b0\u1eddi ta c\u0169ng chia b\u1ed9 s\u1ed1 b\u00f3ng th\u00e0nh 2 lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0 sau:<\/p>\n
*L\u01b0u \u00fd: C\u00f3 th\u1ec3 g\u1ecdi b\u1ed9 00 l\u00e0 b\u1ed9 55 ho\u1eb7c b\u1ed9 05 hay 50. T\u01b0\u01a1ng t\u1ef1 v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 s\u1ed1 kh\u00e1c.<\/strong><\/em><\/p>\n<\/p>\n
B\u1ed8 S\u1ed0 B\u00d3NG D\u01af\u01a0NG<\/span><\/h4>\nB\u1ed9 s\u1ed1 b\u00f3ng d\u01b0\u01a1ng l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a nhau. Ho\u1eb7c 1 s\u1ed1 gi\u1ed1ng nhau, 1 s\u1ed1 l\u00e0 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a nhau theo quy \u0111\u1ecbnh c\u1ee7a b\u00f3ng s\u1ed1 \u0111\u1ec1. C\u00f3 15 b\u1ed9 b\u00f3ng d\u01b0\u01a1ng nh\u01b0 sau:<\/p>\n
B\u1ed8 00 \u2013 H\u1ec6 00<\/strong><\/span><\/h4>\nB\u1ed9 00 hay h\u1ec7 00 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 00,55,05,50<\/p>\n
B\u1ed8 01 \u2013 <\/strong>H\u1ec6 01<\/strong><\/span><\/h4>\nB\u1ed9 01 hay h\u1ec7 01 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 01, 10, 06, 60, 51, 15, 56, 65<\/p>\n
B\u1ed8 02 \u2013 H\u1ec6 02 <\/strong><\/span><\/h4>\nB\u1ed9 02 hay h\u1ec7 02 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 02, 20, 07, 70, 52, 25, 57, 75<\/p>\n
B\u1ed8 03 \u2013 <\/strong>H\u1ec6 03<\/strong><\/span><\/h4>\nB\u1ed9 03 hay h\u1ec7 03 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 03, 30, 08, 80, 53, 35, 58, 85<\/p>\n
B\u1ed8 04 <\/strong>\u2013 <\/strong>H\u1ec6 04<\/strong><\/span><\/h4>\nB\u1ed9 04 hay h\u1ec7 04 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 04, 40, 09, 90, 54, 45, 59, 95<\/p>\n
B\u1ed8 11 <\/strong>\u2013 <\/strong>H\u1ec6 11<\/strong><\/span><\/h4>\nB\u1ed9 11 hay h\u1ec7 11 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 11, 66, 16, 61<\/p>\n
B\u1ed8 12 <\/strong>\u2013 <\/strong>H\u1ec6 12<\/strong><\/span><\/h4>\nB\u1ed9 12 hay h\u1ec7 12 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 12, 21,17, 71, 62, 26, 67, 76<\/p>\n
B\u1ed8 13 <\/strong>\u2013 <\/strong>H\u1ec6 13<\/strong><\/span><\/h4>\nB\u1ed9 13 hay h\u1ec7 13 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 13, 31, 18, 81, 63, 36, 68, 86<\/p>\n
B\u1ed8 14 <\/strong>\u2013 <\/strong>H\u1ec6 14<\/strong><\/span><\/h4>\nB\u1ed9 14 hay h\u1ec7 14 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 14, 41, 19, 91, 64, 46, 69, 96<\/p>\n
B\u1ed8 22 <\/strong>\u2013 <\/strong>H\u1ec6 22<\/strong><\/span><\/h4>\nB\u1ed9 22 hay h\u1ec7 22 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 22, 77, 27, 72<\/p>\n
B\u1ed8 23 <\/strong>\u2013 <\/strong>H\u1ec6 23<\/strong><\/span><\/h4>\nB\u1ed9 23 hay h\u1ec7 23 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 23, 32, 28, 82, 73, 37, 78, 87<\/p>\n
B\u1ed8 24 <\/strong>\u2013 <\/strong>H\u1ec6 24<\/strong><\/span><\/h4>\nB\u1ed9 24 hay h\u1ec7 24 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 24, 42, 29, 92, 74, 47, 79, 97<\/p>\n
B\u1ed8 33 <\/strong>\u2013 <\/strong>H\u1ec6 33<\/strong><\/span><\/h4>\nB\u1ed9 33 hay h\u1ec7 33 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 33, 88, 38, 83<\/p>\n
B\u1ed8 34 <\/strong>\u2013 <\/strong>H\u1ec6 34<\/strong><\/span><\/h4>\nB\u1ed9 34 hay h\u1ec7 34 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 34, 43, 39, 93, 84, 48, 89, 98<\/p>\n
B\u1ed8 44 <\/strong>\u2013 <\/strong>H\u1ec6 44<\/strong><\/span><\/h4>\nB\u1ed9 44 hay h\u1ec7 44 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 44, 99, 49, 94<\/p>\n
B\u00f3ng c\u1ee7a c\u00e1c s\u1ed1 \u0111\u1ec1 g\u1ed3m c\u00f3 B\u00f3ng \u00e2m v\u00e0 B\u00f3ng d\u01b0\u01a1ng<\/strong><\/span><\/h3>\n<\/p>\n
B\u1ed8 S\u1ed0 B\u00d3NG \u00c2M<\/strong><\/span><\/span><\/h3>\nB\u1ed9 s\u1ed1 b\u00f3ng \u00e2m l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a nhau. Ho\u1eb7c 1 s\u1ed1 gi\u1ed1ng nhau, 1 s\u1ed1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a nhau theo quy \u0111\u1ecbnh c\u1ee7a b\u00f3ng s\u1ed1 \u0111\u1ec1. C\u00f3 15 b\u1ed9 b\u00f3ng \u00e2m nh\u01b0 sau:<\/p>\n
B\u1ed8 00 <\/strong>\u2013 <\/strong>H\u1ec6 00<\/strong><\/span><\/h4>\nB\u1ed9 00 hay h\u1ec7 00 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 00,77,07,70<\/p>\n
B\u1ed8 01 <\/strong>\u2013 <\/strong>H\u1ec6 01<\/strong><\/span><\/h4>\nB\u1ed9 01 hay h\u1ec7 01 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 01,10, 04, 40, 71, 17, 47, 74<\/p>\n
B\u1ed8 02 <\/strong>\u2013 <\/strong>H\u1ec6 02<\/strong><\/span><\/h4>\nB\u1ed9 02 hay h\u1ec7 02 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 02, 20, 09, 90, 72, 27, 79, 97<\/p>\n
B\u1ed8 03 <\/strong>\u2013 <\/strong>H\u1ec6 03<\/strong><\/span><\/h4>\nB\u1ed9 03 hay h\u1ec7 03 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 03, 30, 06, 60, 73, 37, 76, 67<\/p>\n
B\u1ed8 05 <\/strong>\u2013 <\/strong>H\u1ec6 05<\/strong><\/span><\/h4>\nB\u1ed9 05 hay h\u1ec7 05 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 05, 50, 75, 57, 08, 80, 78, 87<\/p>\n
B\u1ed8 11 <\/strong>\u2013 <\/strong>H\u1ec6 11<\/strong><\/span><\/h4>\nB\u1ed9 11 hay h\u1ec7 11 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 11, 44, 14, 41<\/p>\n
B\u1ed8 12 <\/strong>\u2013 <\/strong>H\u1ec6 12<\/strong><\/span><\/h4>\nB\u1ed9 12 hay h\u1ec7 12 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 12, 21,19, 91, 42, 24, 49, 94<\/p>\n
B\u1ed8 13 <\/strong>\u2013 <\/strong>H\u1ec6 13<\/strong><\/span><\/h4>\nB\u1ed9 13 hay h\u1ec7 13 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 13, 31, 16, 61, 43, 34, 46, 64<\/p>\n
B\u1ed8 15 <\/strong>\u2013 <\/strong>H\u1ec6 15<\/strong><\/span><\/h4>\nB\u1ed9 15 hay h\u1ec7 15 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 15, 51, 18, 81, 45, 54, 48, 84<\/p>\n
B\u1ed8 22 <\/strong>\u2013 <\/strong>H\u1ec6 22<\/strong><\/span><\/h4>\nB\u1ed9 22 hay h\u1ec7 22 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 22, 99, 29, 92<\/p>\n
B\u1ed8 23 <\/strong>\u2013 <\/strong>H\u1ec6 23<\/strong><\/span><\/h4>\nB\u1ed9 23 hay h\u1ec7 23 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 23, 32, 26, 62, 93, 39, 69, 96<\/p>\n
B\u1ed8 25 <\/strong>\u2013 <\/strong>H\u1ec6 25<\/strong><\/span><\/h4>\nB\u1ed9 25 hay h\u1ec7 25 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 25, 52, 28, 82, 95, 59, 89, 98<\/p>\n
B\u1ed8 33 <\/strong>\u2013 <\/strong>H\u1ec6 33<\/strong><\/span><\/h4>\nB\u1ed9 33 hay h\u1ec7 33 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 33, 66, 36, 63<\/p>\n
B\u1ed8 35 <\/strong>\u2013 <\/strong>H\u1ec6 35<\/strong><\/span><\/h4>\nB\u1ed9 35 hay h\u1ec7 35 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 35, 53, 38, 83, 65, 56, 86, 68<\/p>\n
B\u1ed8 55 <\/strong>\u2013 <\/strong>H\u1ec6 55<\/strong><\/span><\/h4>\nB\u1ed9 55 hay h\u1ec7 55 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 55, 88, 58, 85<\/p>\n
K\u00c9P L\u1ec6CH V\u00c0 K\u00c9P \u00c2M<\/span><\/strong><\/span><\/h2>\n<\/p>\n
Ngo\u00e0i c\u00e1c b\u1ed9 b\u00f3ng s\u1ed1 \u0111\u1ec1 nh\u01b0 \u0111\u00e3 n\u00eau \u1edf tr\u00ean ta c\u00f2n c\u00f3 c\u00e1c b\u1ed9 s\u1ed1 kh\u00e1c ph\u00e1t tri\u1ec3n d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 b\u00f3ng \u00e2m v\u00e0 b\u00f3ng d\u01b0\u01a1ng. \u0110\u00f3 l\u00e0 c\u00e1c b\u1ed9 s\u1ed1 k\u00e9p l\u1ec7ch<\/span> v\u00e0 k\u00e9p \u00e2m.<\/p>\nTr\u00ean \u0111\u00e2y l\u00e0 to\u00e0n b\u1ed9 ki\u1ebfn th\u1ee9c v\u1ec1 b\u00f3ng c\u1ee7a c\u00e1c s\u1ed1 \u0111\u1ec1, c\u00e1c b\u1ed9 s\u1ed1 b\u00f3ng v\u00e0 c\u00e1c b\u1ed9 s\u1ed1 ph\u00e1t tri\u1ec3n d\u1ef1a tr\u00ean b\u1ed9 s\u1ed1 b\u00f3ng. Ch\u00fac c\u00e1c b\u1ea1n \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng v\u00e0o th\u1ef1c t\u1ebf. C\u00e1m \u01a1n c\u00e1c b\u1ea1n \u0111\u00e3 xem b\u00e0i vi\u1ebft. Ch\u00fac c\u00e1c b\u1ea1n lu\u00f4n m\u1ea1nh kh\u1ecfe v\u00e0 g\u1eb7p nhi\u1ec1u may m\u1eafn. H\u1eb9n g\u1eb7p l\u1ea1i \u1edf nh\u1eefng b\u00e0i vi\u1ebft ti\u1ebfp theo.<\/p>\n<\/div>\n
B\u00f3ng d\u01b0\u01a1ng trong b\u00f3ng s\u1ed1 \u0111\u1ec1 g\u1ed3m c\u00f3 5 c\u1eb7p s\u1ed1 sau:<\/p>\n
- \n
- 1 v\u00e0 6 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 2 v\u00e0 7 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 3 v\u00e0 8 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 4 v\u00e0 9 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n
- 0 v\u00e0 5 l\u00e0 c\u1eb7p b\u00f3ng d\u01b0\u01a1ng<\/li>\n<\/ul>\n
B\u00d3NG \u00c2M<\/strong><\/span><\/span><\/h3>\n
B\u00f3ng \u00e2m trong b\u00f3ng s\u1ed1 \u0111\u1ec1 c\u0169ng g\u1ed3m c\u00f3 5 c\u1eb7p s\u1ed1:<\/p>\n
- \n
- S\u1ed1 0 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 7<\/li>\n
- S\u1ed1 1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 4<\/li>\n
- S\u1ed1 2 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 9<\/li>\n
- S\u1ed1 3 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 6<\/li>\n
- S\u1ed1 5 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a s\u1ed1 8<\/li>\n<\/ul>\n
B\u1ed8 S\u1ed0 B\u00d3NG<\/strong><\/span><\/span><\/h2>\n
B\u1ed9 s\u1ed1 b\u00f3ng l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng c\u1ee7a nhau ho\u1eb7c c\u00f3 1 s\u1ed1 gi\u1ed1ng nhau v\u00e0 1 s\u1ed1 l\u00e0 b\u00f3ng c\u1ee7a nhau.<\/p>\n
V\u00ed d\u1ee5:<\/strong><\/em><\/p>\n
- \n
- 24 v\u00e0 29 c\u00f9ng c\u00f3 1 s\u1ed1 2. \u0110\u1ed3ng th\u1eddi 4 v\u00e0 9 c\u0169ng l\u00e0 b\u00f3ng c\u1ee7a nhau n\u00ean 24 v\u00e0 29 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n
- 37 v\u00e0 28 c\u00f3 3 v\u00e0 8, 2 v\u00e0 7 l\u00e0 2 c\u1eb7p s\u1ed1 b\u00f3ng c\u1ee7a nhau. V\u00ec v\u1eady 37 v\u00e0 28 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n<\/ul>\n
D\u1ef1a v\u00e0o c\u00e1ch chia b\u00f3ng s\u1ed1 \u0111\u1ec1, ng\u01b0\u1eddi ta c\u0169ng chia b\u1ed9 s\u1ed1 b\u00f3ng th\u00e0nh 2 lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0 sau:<\/p>\n
*L\u01b0u \u00fd: C\u00f3 th\u1ec3 g\u1ecdi b\u1ed9 00 l\u00e0 b\u1ed9 55 ho\u1eb7c b\u1ed9 05 hay 50. T\u01b0\u01a1ng t\u1ef1 v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 s\u1ed1 kh\u00e1c.<\/strong><\/em><\/p>\n
<\/p>\n
B\u1ed8 S\u1ed0 B\u00d3NG D\u01af\u01a0NG<\/span><\/h4>\n
B\u1ed9 s\u1ed1 b\u00f3ng d\u01b0\u01a1ng l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a nhau. Ho\u1eb7c 1 s\u1ed1 gi\u1ed1ng nhau, 1 s\u1ed1 l\u00e0 b\u00f3ng d\u01b0\u01a1ng c\u1ee7a nhau theo quy \u0111\u1ecbnh c\u1ee7a b\u00f3ng s\u1ed1 \u0111\u1ec1. C\u00f3 15 b\u1ed9 b\u00f3ng d\u01b0\u01a1ng nh\u01b0 sau:<\/p>\n
B\u1ed8 00 \u2013 H\u1ec6 00<\/strong><\/span><\/h4>\n
B\u1ed9 00 hay h\u1ec7 00 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 00,55,05,50<\/p>\n
B\u1ed8 01 \u2013 <\/strong>H\u1ec6 01<\/strong><\/span><\/h4>\n
B\u1ed9 01 hay h\u1ec7 01 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 01, 10, 06, 60, 51, 15, 56, 65<\/p>\n
B\u1ed8 02 \u2013 H\u1ec6 02 <\/strong><\/span><\/h4>\n
B\u1ed9 02 hay h\u1ec7 02 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 02, 20, 07, 70, 52, 25, 57, 75<\/p>\n
B\u1ed8 03 \u2013 <\/strong>H\u1ec6 03<\/strong><\/span><\/h4>\n
B\u1ed9 03 hay h\u1ec7 03 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 03, 30, 08, 80, 53, 35, 58, 85<\/p>\n
B\u1ed8 04 <\/strong>\u2013 <\/strong>H\u1ec6 04<\/strong><\/span><\/h4>\n
B\u1ed9 04 hay h\u1ec7 04 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 04, 40, 09, 90, 54, 45, 59, 95<\/p>\n
B\u1ed8 11 <\/strong>\u2013 <\/strong>H\u1ec6 11<\/strong><\/span><\/h4>\n
B\u1ed9 11 hay h\u1ec7 11 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 11, 66, 16, 61<\/p>\n
B\u1ed8 12 <\/strong>\u2013 <\/strong>H\u1ec6 12<\/strong><\/span><\/h4>\n
B\u1ed9 12 hay h\u1ec7 12 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 12, 21,17, 71, 62, 26, 67, 76<\/p>\n
B\u1ed8 13 <\/strong>\u2013 <\/strong>H\u1ec6 13<\/strong><\/span><\/h4>\n
B\u1ed9 13 hay h\u1ec7 13 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 13, 31, 18, 81, 63, 36, 68, 86<\/p>\n
B\u1ed8 14 <\/strong>\u2013 <\/strong>H\u1ec6 14<\/strong><\/span><\/h4>\n
B\u1ed9 14 hay h\u1ec7 14 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 14, 41, 19, 91, 64, 46, 69, 96<\/p>\n
B\u1ed8 22 <\/strong>\u2013 <\/strong>H\u1ec6 22<\/strong><\/span><\/h4>\n
B\u1ed9 22 hay h\u1ec7 22 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 22, 77, 27, 72<\/p>\n
B\u1ed8 23 <\/strong>\u2013 <\/strong>H\u1ec6 23<\/strong><\/span><\/h4>\n
B\u1ed9 23 hay h\u1ec7 23 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 23, 32, 28, 82, 73, 37, 78, 87<\/p>\n
B\u1ed8 24 <\/strong>\u2013 <\/strong>H\u1ec6 24<\/strong><\/span><\/h4>\n
B\u1ed9 24 hay h\u1ec7 24 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 24, 42, 29, 92, 74, 47, 79, 97<\/p>\n
B\u1ed8 33 <\/strong>\u2013 <\/strong>H\u1ec6 33<\/strong><\/span><\/h4>\n
B\u1ed9 33 hay h\u1ec7 33 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 33, 88, 38, 83<\/p>\n
B\u1ed8 34 <\/strong>\u2013 <\/strong>H\u1ec6 34<\/strong><\/span><\/h4>\n
B\u1ed9 34 hay h\u1ec7 34 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 34, 43, 39, 93, 84, 48, 89, 98<\/p>\n
B\u1ed8 44 <\/strong>\u2013 <\/strong>H\u1ec6 44<\/strong><\/span><\/h4>\n
B\u1ed9 44 hay h\u1ec7 44 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 44, 99, 49, 94<\/p>\n
B\u00f3ng c\u1ee7a c\u00e1c s\u1ed1 \u0111\u1ec1 g\u1ed3m c\u00f3 B\u00f3ng \u00e2m v\u00e0 B\u00f3ng d\u01b0\u01a1ng<\/strong><\/span><\/h3>\n
<\/p>\n
B\u1ed8 S\u1ed0 B\u00d3NG \u00c2M<\/strong><\/span><\/span><\/h3>\n
B\u1ed9 s\u1ed1 b\u00f3ng \u00e2m l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 2 ch\u1eef s\u1ed1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a nhau. Ho\u1eb7c 1 s\u1ed1 gi\u1ed1ng nhau, 1 s\u1ed1 l\u00e0 b\u00f3ng \u00e2m c\u1ee7a nhau theo quy \u0111\u1ecbnh c\u1ee7a b\u00f3ng s\u1ed1 \u0111\u1ec1. C\u00f3 15 b\u1ed9 b\u00f3ng \u00e2m nh\u01b0 sau:<\/p>\n
B\u1ed8 00 <\/strong>\u2013 <\/strong>H\u1ec6 00<\/strong><\/span><\/h4>\n
B\u1ed9 00 hay h\u1ec7 00 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 00,77,07,70<\/p>\n
B\u1ed8 01 <\/strong>\u2013 <\/strong>H\u1ec6 01<\/strong><\/span><\/h4>\n
B\u1ed9 01 hay h\u1ec7 01 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 01,10, 04, 40, 71, 17, 47, 74<\/p>\n
B\u1ed8 02 <\/strong>\u2013 <\/strong>H\u1ec6 02<\/strong><\/span><\/h4>\n
B\u1ed9 02 hay h\u1ec7 02 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 02, 20, 09, 90, 72, 27, 79, 97<\/p>\n
B\u1ed8 03 <\/strong>\u2013 <\/strong>H\u1ec6 03<\/strong><\/span><\/h4>\n
B\u1ed9 03 hay h\u1ec7 03 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 03, 30, 06, 60, 73, 37, 76, 67<\/p>\n
B\u1ed8 05 <\/strong>\u2013 <\/strong>H\u1ec6 05<\/strong><\/span><\/h4>\n
B\u1ed9 05 hay h\u1ec7 05 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 05, 50, 75, 57, 08, 80, 78, 87<\/p>\n
B\u1ed8 11 <\/strong>\u2013 <\/strong>H\u1ec6 11<\/strong><\/span><\/h4>\n
B\u1ed9 11 hay h\u1ec7 11 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 11, 44, 14, 41<\/p>\n
B\u1ed8 12 <\/strong>\u2013 <\/strong>H\u1ec6 12<\/strong><\/span><\/h4>\n
B\u1ed9 12 hay h\u1ec7 12 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 12, 21,19, 91, 42, 24, 49, 94<\/p>\n
B\u1ed8 13 <\/strong>\u2013 <\/strong>H\u1ec6 13<\/strong><\/span><\/h4>\n
B\u1ed9 13 hay h\u1ec7 13 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 13, 31, 16, 61, 43, 34, 46, 64<\/p>\n
B\u1ed8 15 <\/strong>\u2013 <\/strong>H\u1ec6 15<\/strong><\/span><\/h4>\n
B\u1ed9 15 hay h\u1ec7 15 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 15, 51, 18, 81, 45, 54, 48, 84<\/p>\n
B\u1ed8 22 <\/strong>\u2013 <\/strong>H\u1ec6 22<\/strong><\/span><\/h4>\n
B\u1ed9 22 hay h\u1ec7 22 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 22, 99, 29, 92<\/p>\n
B\u1ed8 23 <\/strong>\u2013 <\/strong>H\u1ec6 23<\/strong><\/span><\/h4>\n
B\u1ed9 23 hay h\u1ec7 23 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 23, 32, 26, 62, 93, 39, 69, 96<\/p>\n
B\u1ed8 25 <\/strong>\u2013 <\/strong>H\u1ec6 25<\/strong><\/span><\/h4>\n
B\u1ed9 25 hay h\u1ec7 25 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 25, 52, 28, 82, 95, 59, 89, 98<\/p>\n
B\u1ed8 33 <\/strong>\u2013 <\/strong>H\u1ec6 33<\/strong><\/span><\/h4>\n
B\u1ed9 33 hay h\u1ec7 33 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 33, 66, 36, 63<\/p>\n
B\u1ed8 35 <\/strong>\u2013 <\/strong>H\u1ec6 35<\/strong><\/span><\/h4>\n
B\u1ed9 35 hay h\u1ec7 35 g\u1ed3m c\u00f3 8 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 35, 53, 38, 83, 65, 56, 86, 68<\/p>\n
B\u1ed8 55 <\/strong>\u2013 <\/strong>H\u1ec6 55<\/strong><\/span><\/h4>\n
B\u1ed9 55 hay h\u1ec7 55 g\u1ed3m c\u00f3 4 s\u1ed1 l\u00e0 c\u00e1c s\u1ed1: 55, 88, 58, 85<\/p>\n
K\u00c9P L\u1ec6CH V\u00c0 K\u00c9P \u00c2M<\/span><\/strong><\/span><\/h2>\n
<\/p>\n
Ngo\u00e0i c\u00e1c b\u1ed9 b\u00f3ng s\u1ed1 \u0111\u1ec1 nh\u01b0 \u0111\u00e3 n\u00eau \u1edf tr\u00ean ta c\u00f2n c\u00f3 c\u00e1c b\u1ed9 s\u1ed1 kh\u00e1c ph\u00e1t tri\u1ec3n d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m v\u1ec1 b\u00f3ng \u00e2m v\u00e0 b\u00f3ng d\u01b0\u01a1ng. \u0110\u00f3 l\u00e0 c\u00e1c b\u1ed9 s\u1ed1 k\u00e9p l\u1ec7ch<\/span> v\u00e0 k\u00e9p \u00e2m.<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 to\u00e0n b\u1ed9 ki\u1ebfn th\u1ee9c v\u1ec1 b\u00f3ng c\u1ee7a c\u00e1c s\u1ed1 \u0111\u1ec1, c\u00e1c b\u1ed9 s\u1ed1 b\u00f3ng v\u00e0 c\u00e1c b\u1ed9 s\u1ed1 ph\u00e1t tri\u1ec3n d\u1ef1a tr\u00ean b\u1ed9 s\u1ed1 b\u00f3ng. Ch\u00fac c\u00e1c b\u1ea1n \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng v\u00e0o th\u1ef1c t\u1ebf. C\u00e1m \u01a1n c\u00e1c b\u1ea1n \u0111\u00e3 xem b\u00e0i vi\u1ebft. Ch\u00fac c\u00e1c b\u1ea1n lu\u00f4n m\u1ea1nh kh\u1ecfe v\u00e0 g\u1eb7p nhi\u1ec1u may m\u1eafn. H\u1eb9n g\u1eb7p l\u1ea1i \u1edf nh\u1eefng b\u00e0i vi\u1ebft ti\u1ebfp theo.<\/p>\n<\/div>\n
- 37 v\u00e0 28 c\u00f3 3 v\u00e0 8, 2 v\u00e0 7 l\u00e0 2 c\u1eb7p s\u1ed1 b\u00f3ng c\u1ee7a nhau. V\u00ec v\u1eady 37 v\u00e0 28 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n<\/ul>\n
- 24 v\u00e0 29 c\u00f9ng c\u00f3 1 s\u1ed1 2. \u0110\u1ed3ng th\u1eddi 4 v\u00e0 9 c\u0169ng l\u00e0 b\u00f3ng c\u1ee7a nhau n\u00ean 24 v\u00e0 29 l\u00e0 b\u00f3ng c\u1ee7a nhau<\/em><\/li>\n