\n- D\u00e0n \u0111\u1ec1 25 s\u1ed1 to bao g\u1ed3m nh\u1eefng con c\u00f3 ch\u1eef s\u1ed1 t\u1eeb 5 \u2013 9
\nnh\u01b0: 55, 66, 77, 88, 99, 56, 65, 57, 75, 58, 85, 59, 95, 67, 76, 68, 86, 69,
\n96, 78, 79, 97, 89, 98. D\u00e0n \u0111\u1ec1 n\u00e0y ch\u1ee9a nhi\u1ec1u s\u1ed1 \u0111\u1eb9p nh\u01b0 5, 6, 8, 9 n\u00ean th\u01b0\u1eddng
\nhay ra, do v\u1eady t\u1ec9 l\u1ec7 \u0103n l\u1ea1i kh\u00f4ng qu\u00e1 cao nh\u01b0 d\u00e0n kh\u00e1c.<\/li>\n - D\u00e0n \u0111\u1ec1 25 s\u1ed1 to nh\u1ecf ngh\u0129a l\u00e0 d\u00e0n \u0111\u1ec1 ph\u1ed1i h\u1ee3p gi\u1eefa s\u1ed1
\nto v\u00e0 nh\u1ecf, hay c\u00f2n g\u1ecdi l\u00e0 \u0111\u1ea7u to \u0111u\u00f4i nh\u1ecf. G\u1ed3m c\u00f3 c\u00e1c con s\u1ed1 nh\u01b0: t\u1eeb s\u1ed1 90 \u0111\u1ebfn
\ns\u1ed1 98, t\u1eeb s\u1ed1 80 \u0111\u1ebfn s\u1ed1 85, t\u1eeb s\u1ed1 70 \u0111\u1ebfn s\u1ed1 75, t\u1eeb s\u1ed1 60 \u0111\u1ebfn s\u1ed1 65, t\u1eeb s\u1ed1 50 \u0111\u1ebfn
\ns\u1ed1 54.<\/li>\n - D\u00e0n \u0111\u1ec1 25 s\u1ed1 nh\u1ecf to l\u00e0 \u0111\u1ea7u nh\u1ecf \u0111u\u00f4i to nh\u01b0: 05, 06,
\n07, 08, 09, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 35, 36, 37, 38, 39, 45, 46,
\n47, 48, 49.<\/li>\n - D\u00e0n \u0111\u1ec1 25 s\u1ed1 nh\u1ecf l\u00e0 d\u00e0n \u0111\u01b0\u1ee3c \u01b0a th\u00edch nh\u1ea5t, v\u00ec khi
\ntr\u00fang s\u1ebd tr\u00fang r\u1ea5t l\u1edbn. D\u00e0n \u0111\u1ec1 n\u00e0y bao g\u1ed3m c\u00e1c s\u1ed1 nh\u01b0: 00, 11, 22, 33, 44, 01,
\n10, 02, 20, 03, 30, 04, 40, 05, 50, 12, 21, 13, 31, 14, 41, 23, 32, 24, 42, 34,
\n43.<\/li>\n<\/ul>\nD\u1ef1a tr\u00ean nh\u1eefng c\u00e1ch l\u1eadp d\u00e0n \u0111\u1ec1 chu\u1ea9n \u0111\u00e1nh quanh n\u0103m<\/strong> n\u00e0y ch\u1eafc ch\u1eafn
\nc\u00e1c b\u1ea1n s\u1ebd c\u00f3 c\u01a1 h\u1ed9i ra s\u1ed1 l\u00f4 tr\u00fang l\u1edbn r\u1ea5t cao. Quan tr\u1ecdng nh\u1ea5t l\u00e0 b\u1ea1n s\u1ebd t\u1ea1o
\ncho m\u00ecnh nh\u1eefng b\u1ee9t ph\u00e1, h\u01b0\u1edbng ch\u01a1i thu\u1ea7n th\u1ee5c \u0111\u1ec3 \u0111em v\u1ec1 cho m\u00ecnh l\u1ee3i nhu\u1eadn t\u1ed1i<\/p>\n<\/div>\n<\/div>\n<\/article>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/main><\/p>\n