C\u00e1c t\u1ed5ng \u0111\u1ec1 trong l\u00f4 \u0111\u1ec1 c\u00f3 t\u1ea5t c\u1ea3 10 b\u1ed9<\/figcaption><\/figure>\n– T\u1ed5ng 0 l\u00f4 \u0111\u1ec1 g\u1ed3m bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 0 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 0 ho\u1eb7c gi\u00e1 tr\u1ecb 10. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 nh\u01b0 sau:<\/span><\/p>\n82 – 46 – 64 – 55 – 00 – 19 – 91 – 28 – 37 – 73\u00a0\u00a0<\/span><\/p>\n– T\u1ed5ng 1 l\u00f4 \u0111\u1ec1 g\u1ed3m bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 1 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 1 ho\u1eb7c gi\u00e1 tr\u1ecb 11. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n83 – 47 – 74 – 01 – 10 – 29 – 92 – 38 – 56 – 65<\/span><\/p>\n– T\u1ed5ng 2 l\u00f4 \u0111\u1ec1 g\u1ed3m bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 2 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 2 ho\u1eb7c gi\u00e1 tr\u1ecb 12. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n48 – 84 – 57 – 75 – 66 – 02 – 20 – 11 – 39 – 93\u00a0<\/span><\/p>\n– T\u1ed5ng 3 l\u00f4 \u0111\u1ec1 c\u00f3 nh\u1eefng con s\u1ed1 n\u00e0o?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 3 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 3 ho\u1eb7c gi\u00e1 tr\u1ecb 13. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n94 – 58 – 85 – 03 – 30 – 12 – 21 – 49 – 67 – 76<\/span><\/p>\n– T\u1ed5ng 4 l\u00f4 \u0111\u1ec1 g\u1ed3m nh\u1eefng con s\u1ed1 n\u00e0o?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 4 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 4 ho\u1eb7c gi\u00e1 tr\u1ecb 14. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n59 – 95 – 13 – 31 – 68 – 86 – 77 – 22 – 04 – 40<\/span><\/p>\n– T\u1ed5ng 5 l\u00f4 \u0111\u1ec1 c\u00f3 nh\u1eefng con n\u00e0o?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 5 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 5 ho\u1eb7c gi\u00e1 tr\u1ecb 15. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n32 – 69 – 96 – 78 – 87 – 14 – 41 – 23 – 05 – 50<\/span><\/p>\n– T\u1ed5ng 6 l\u00f4 \u0111\u1ec1 c\u00f3 nh\u1eefng con n\u00e0o?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 6 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 6 ho\u1eb7c gi\u00e1 tr\u1ecb 16. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 sau:<\/span><\/p>\n06 – 60 – 15 – 51 – 33 – 79 – 97 – 88 – 24 – 42\u00a0<\/span><\/p>\n– T\u1ed5ng 7 l\u00f4 \u0111\u1ec1 g\u1ed3m bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 7 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 7 ho\u1eb7c gi\u00e1 tr\u1ecb 17. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 nh\u01b0 sau:<\/span><\/p>\n52 – 34 – 43 – 89 – 98 – 16 – 61 – 25 – 07 – 70\u00a0<\/span><\/p>\n– T\u1ed5ng 8 l\u00f4 \u0111\u1ec1 g\u1ed3m bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 8 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 b\u1eb1ng gi\u00e1 tr\u1ecb 8 ho\u1eb7c gi\u00e1 gtrij 18. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 nh\u01b0 sau:<\/span><\/p>\n62 – 35 – 53 – 44 – 99 – 08 – 80 – 17 – 71 – 26\u00a0<\/span><\/p>\n– T\u1ed5ng 9 l\u00f4 \u0111\u1ec1 g\u1ed3m c\u00f3 bao nhi\u00eau con?<\/span><\/p>\nB\u1ed9 s\u1ed1 l\u00f4 \u0111\u1ec1 t\u1ed5ng 9 l\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb b\u1eb1ng 9. C\u1ee5 th\u1ec3 g\u1ed3m c\u00e1c s\u1ed1 nh\u01b0 sau:<\/span><\/p>\n72 – 36 – 63 – 45 – 54 – 09 – 90 – 18 – 81 – 27\u00a0<\/span><\/p>\n