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1、 2位数加减法计算题 100道 用时： 错误： 82 41 = 81 10 = 88 84 = 10 36 = 58 27 = 11 41 = 84 62 = 35 31 = 11 54 = 78 70 = 63 10 = 58 32 = 32 24 = 76 51 = 36 50 = 88 16 = 87 82 = 74 31 = 31 22 = 71 10 = 81 10 = 67 44 = 33 24 = 66 30 = 13 56 = 31 18 = 17 82 = 14 62 = 42 36 = 14 75 = 48 20 = 18 21 = 64 31 = 32 37 = 12 7
2、3 = 43 55 = 57 13 = 56 20 = 71 10 = 48 20 = 65 50 = 14 11 = 30 16 = 38 22 = 37 16 = 70 18 = 12 86 = 56 33 = 25 51 = 78 21 = 62 11 = 31 37 = 53 25 = 58 47 = 53 13 = 70 21 = 48 47 = 38 20 = 33 62 = 54 31 = 20 10 = 64 43 = 25 64 = 44 13 = 83 60 = 26 70 = 48 35 = 15 13 = 84 11 = 32 43 = 37 21 = 65 62 = 21 12 = 21 71 = 13 11 = 52 11 = 56 20 = 53 12 = 15 13 = 16 32 = 84 12 = 40 41 = 27 50 = 57 52 = 86 13 = 23 31 = 13 11 = 67 64 = 40 54 = 17 50 = 74 43 = 58 35 = 35 64 = 46 33 = 23 24 = 88 33 = 35 24 = 64 40 = 61 20 = 32 53 =
