Ng\u01b0\u1eddi ta chia c\u00e1c s\u1ed1 t\u1eeb 0 \u0111\u1ebfn 9 th\u00e0nh 2 nh\u00f3m s\u1ed1:<\/p>\n
- \n
- Nh\u00f3m th\u1ee9 nh\u1ea5t l\u00e0 nh\u00f3m s\u1ed1 \u201cth\u1ea5p\u201d g\u1ed3m c\u00e1c s\u1ed1: 0,1,2,3,4<\/li>\n
- Nh\u00f3m th\u1ee9 2 l\u00e0 nh\u00f3m s\u1ed1 \u201ccao\u201d g\u1ed3m c\u00e1c s\u1ed1: 5,6,7,8,9<\/li>\n<\/ul>\n
T\u1eeb 2 nh\u00f3m s\u1ed1 n\u00e0y h\u00ecnh th\u00e0nh n\u1ec1n c\u00e1c d\u00e0n \u0111\u1ec1\u00a0th\u1ea5p th\u1ea5p, th\u1ea5p cao, cao th\u1ea5p, cao cao nh\u01b0 ta n\u00f3i \u0111\u1ebfn \u1edf ti\u00eau \u0111\u1ec1 b\u00e0i vi\u1ebft.<\/p>\n
D\u00c0N \u0110\u1ec0 TH\u1ea4P TH\u1ea4P<\/span><\/strong><\/h2>\n
D\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 m\u00e0 c\u00e1c ch\u1eef s\u1ed1 \u0111\u1ec1u l\u00e0 c\u00e1c s\u1ed1 trong nh\u00f3m s\u1ed1 \u201cth\u1ea5p\u201d. C\u00f3 n\u01a1i c\u00f2n g\u1ecdi d\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p l\u00e0 d\u00e0n \u0111\u1ec1 b\u00e9 b\u00e9, nh\u1ecf nh\u1ecf. D\u00e0n \u0111\u1ec1 th\u1ea5p th\u1ea5p c\u00f3 25 s\u1ed1 v\u00e0 g\u1ed3m nh\u1eefng s\u1ed1 sau:<\/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<\/p>\n
D\u00c0N \u0110\u1ec0 CAO CAO<\/strong><\/span><\/h2>\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u00ean, d\u00e0n \u0111\u1ec1 cao cao g\u1ed3m nh\u1eefng s\u1ed1 m\u00e0 c\u00e1c ch\u1eef s\u1ed1 \u0111\u1ec1u l\u00e0 c\u00e1c s\u1ed1 trong nh\u00f3m \u201ccao\u201d. C\u00f3 n\u01a1i c\u00f2n g\u1ecdi d\u00e0n \u0111\u1ec1 cao cao l\u00e0 d\u00e0n \u0111\u1ec1 to to, l\u1edbn l\u1edbn. D\u00e0n \u0111\u1ec1 cao cao g\u1ed3m c\u00f3 25 s\u1ed1 v\u00e0 g\u1ed3m nh\u1eefng s\u1ed1 sau:<\/p>\n
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<\/p>\n
D\u00c0N \u0110\u1ec0 TH\u1ea4P CAO<\/span><\/strong><\/h2>\n
Kh\u00f4ng gi\u1ed1ng nh\u01b0 d\u00e0n \u0111\u1ec1 cao cao. D\u00e0n \u0111\u1ec1 th\u1ea5p cao l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 m\u00e0 s\u1ed1 h\u00e0ng ch\u1ee5c l\u00e0 c\u00e1c s\u1ed1 trong nh\u00f3m s\u1ed1 \u201cth\u1ea5p\u201d. C\u00f2n c\u00e1c s\u1ed1 \u1edf h\u00e0ng \u0111\u01a1n v\u1ecb l\u1ea1i l\u00e0 s\u1ed1 thu\u1ed9c nh\u00f3m s\u1ed1 \u201ccao\u201d. D\u00e0n \u0111\u1ec1 th\u1ea5p cao g\u1ed3m c\u00f3 25 s\u1ed1 sau:<\/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<\/p>\n
D\u00c0N \u0110\u1ec0 CAO TH\u1ea4P<\/span><\/strong><\/h2>\n
D\u00e0n \u0111\u1ec1 cao th\u1ea5p l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 m\u00e0 s\u1ed1 h\u00e0ng ch\u1ee5c l\u00e0 c\u00e1c s\u1ed1 trong nh\u00f3m s\u1ed1 \u201ccao\u201d. V\u00e0 c\u00e1c s\u1ed1 h\u00e0ng \u0111\u01a1n v\u1ecb n\u1eb1m \u1edf nh\u00f3m s\u1ed1 \u201cth\u1ea5p\u201d. C\u0169ng nh\u01b0 c\u00e1c d\u00e0n \u0111\u1ec1 c\u00f2n l\u1ea1i, d\u00e0n \u0111\u1ec1 cao th\u1ea5p c\u00f3 25 s\u1ed1 v\u00e0 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/p>\n
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<\/p>\n
Tr\u00ean \u0111\u00e2y l\u00e0 to\u00e0n b\u1ed9 ki\u1ebfn th\u1ee9c v\u1ec1 d\u00e0n \u0111\u1ec1 cao cao, th\u1ea5p th\u1ea5p, th\u1ea5p cao v\u00e0 cao th\u1ea5p. M\u1ed7i ng\u01b0\u1eddi s\u1ebd \u00e1p d\u1ee5ng ch\u00fang theo c\u00e1ch kh\u00e1c nhau. Nh\u01b0ng ch\u00fang t\u00f4i lu\u00f4n mong mu\u1ed1n b\u1ea1n s\u1ebd \u00e1p d\u1ee5ng hi\u1ec7u qu\u1ea3. \u0110\u1ec3 d\u00e0nh chi\u1ebfn th\u1eafng tr\u01b0\u1edbc ch\u1ee7 l\u00f4 c\u0169ng nh\u01b0 c\u00e1c nh\u00e0 c\u00e1i l\u00f4 \u0111\u1ec1. C\u00e1m \u01a1n c\u00e1c b\u1ea1n \u0111\u00e3 \u0111\u1ecdc b\u00e0i vi\u1ebft. Ch\u00fac c\u00e1c b\u1ea1n lu\u00f4n g\u1eb7p nhi\u1ec1u th\u00e0nh c\u00f4ng v\u00e0 may m\u1eafn.<\/p>\n<\/div>\n