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\u0110\u1ec1 v\u1ec1 k\u00e9p h\u00f4m sau \u0111\u00e1nh l\u00f4 g\u00ec<\/b> cho chu\u1ea9n ch\u00ednh l\u00e0 \u0111i\u1ec1u m\u00e0 anh em c\u00f3 \u0111am m\u00ea l\u00f4 \u0111\u1ec1 quan t\u00e2m. C\u00f3 r\u1ea5t nhi\u1ec1u d\u1ea1ng \u0111\u1ec1 v\u1ec1 k\u00e9p, m\u1ed7i m\u1ed9t lo\u1ea1i \u0111\u1ec1u \u1ea9n ch\u1ee9a nh\u1eefng con s\u1ed1 ri\u00eang. L\u00fac n\u00e0y ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ghi nh\u1edb \u0111\u1ec3 \u0111\u00e1nh l\u00f4 chu\u1ea9n c\u0169ng nh\u01b0 t\u00edch l\u0169y cho m\u00ecnh m\u1eb9o \u0111\u00e1nh \u0111\u1ec1 ri\u00eang bi\u1ec7t \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c th\u01b0\u1edfng cao. B\u00e0i vi\u1ebft s\u1ebd b\u1eadt m\u00ed nh\u1eefng con s\u1ed1 \u1ea9n ch\u1ee9a sau k\u1ebft qu\u1ea3 \u0111\u1ec1 v\u1ec1 k\u00e9p v\u00e0 k\u1ebft h\u1ee3p phong th\u1ee7y \u0111\u1ec3 \u0111\u00e1nh chu\u1ea9n nh\u1ea5t. <\/span><\/p>\n1. \u0110\u1ec1 v\u1ec1 k\u00e9p b\u1eb1ng h\u00f4m sau \u0111\u00e1nh l\u00f4 g\u00ec?<\/b><\/h2>\n
\u0110\u1ec1 k\u00e9p b\u1eb1ng ch\u00ednh l\u00e0 nh\u1eefng k\u1ebft qu\u1ea3 \u0111\u1ec1 c\u00f3 \u0111\u1ea7u v\u00e0 cu\u1ed1i gi\u1ed1ng nhau, hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ec1 v\u1ec1 k\u00e9p truy\u1ec1n th\u1ed1ng. Bao g\u1ed3m 10 s\u1ed1 \u0111\u00f3 l\u00e0 00, 11, 22, 33, 44, 55, 66, 77, 88, 99. C\u1ee5 th\u1ec3 b\u1ea1n h\u00e3y t\u00ecm hi\u1ec3u v\u1edbi nh\u1eefng con s\u1ed1 sau: <\/span><\/p>\n