L\u00f4 k\u00e9p l\u00e0 g\u00ec?<\/h2>\n
L\u00f4 k\u00e9p \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 s\u1ed1 m\u00e0 c\u00f3 c\u1ea3 h\u00e0ng \u0111\u01a1n v\u1ecb v\u00e0 h\u00e0ng ch\u1ee5c gi\u1ed1ng nhau nh\u01b0 00 \u2013 11 \u2013 22 \u2013 33\u2026. Khi ch\u01a1i l\u00f4 k\u00e9p s\u1ebd mang v\u1ec1 t\u1ef7 l\u1ec7 chi\u1ebfn th\u1eafng cao v\u00e0 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u chi ph\u00ed.<\/p>\n
Tuy nhi\u00ean, kh\u00e1i ni\u1ec7m v\u1ec1 l\u00f4 k\u00e9p c\u00f2n \u0111\u01b0\u1ee3c chia ra l\u00e0m m\u1ed9t s\u1ed1 lo\u1ea1i nh\u01b0 sau:<\/p>\n
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- L\u00f4 k\u00e9p b\u1eb1ng l\u00e0 lo\u1ea1i l\u00f4 ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf mi\u1ec1n B\u1eafc, d\u1ec5 ch\u01a1i, d\u1ec5 ch\u1ecdn. C\u00f3 nhi\u1ec1u ng\u01b0\u1eddi khi ch\u01a1i t\u1ea5t tay ch\u1ec9 c\u1ea7n th\u00f4ng b\u00e1o v\u1edbi nh\u00e0 c\u00e1i l\u00e0 ch\u01a1i t\u1ea5t c\u1ea3 k\u00e9p b\u1eb1ng l\u00e0 ng\u01b0\u1eddi ghi s\u1ebd bi\u1ebft b\u1ea1n mu\u1ed1n ch\u01a1i c\u00e1c s\u1ed1 l\u00f4 k\u00e9p l\u00e0 00, 11, 22, 33, 44, 55, 66, 77, 88, 99.<\/li>\n
- L\u00f4 k\u00e9p \u00e2m l\u00e0 nh\u1eefng con s\u1ed1 d\u1ef1a theo b\u00f3ng \u00e2m nh\u01b0 14 41 07 70 29 92 58 85 36 63. B\u00f3ng \u00e2m c\u1ee7a s\u1ed1 0 l\u00e0 7, 1 l\u00e0 4, 2 l\u00e0 9, 3 l\u00e0 6, 4 l\u00e0 1, 5 l\u00e0 8\u2026<\/li>\n
- L\u00f4 k\u00e9p l\u1ec7ch l\u00e0 hai s\u1ed1 b\u00f3ng c\u1ee7a nhau, v\u00ed d\u1ee5: 05 50 16 61 27 72 38 83 49 94. B\u00f3ng theo kh\u00e1i ni\u1ec7m trong ch\u01a1i l\u00f4 \u0111\u1ec1 l\u00e0 \u0111i\u1ec3m gi\u1eefa hai s\u1ed1 h\u00e0ng ch\u1ee5c v\u00e0 h\u00e0ng \u0111\u01a1n v\u1ecb c\u00e1ch nhau 5, v\u00ed d\u1ee5 nh\u01b0 05 50 th\u00ec 5-0=5, ho\u1eb7c 16 61, 6-1=5<\/li>\n<\/ul>\n
Nh\u01b0 v\u1eady, l\u00f4 k\u00e9p l\u00e0 g\u00ec g\u00ec ch\u1eafc c\u00f3 l\u1ebd b\u1ea1n c\u0169ng \u0111\u00e3 hi\u1ec3u \u0111\u01b0\u1ee3c chi ti\u1ebft r\u00f5 r\u00e0ng th\u00f4ng qua nh\u1eefng khai ni\u1ec7m \u1edf b\u00ean tr\u00ean. Tuy nhi\u00ean \u0111\u1ec3 l\u00e0m sao c\u00f3 th\u1ec3 b\u1eaft l\u00f4 k\u00e9p ch\u00ednh x\u00e1c nh\u1ea5t th\u00ec m\u1eddi b\u1ea1n tham kh\u1ea3o d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n
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