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1、 2位数加减法计算题 100道 用时： 错误： 38 37 = 75 18 = 75 37 = 62 34 = 81 14 = 38 55 = 84 18 = 51 28 = 37 44 = 35 17 = 28 38 = 76 37 = 51 16 = 82 65 = 14 47 = 53 36 = 70 57 = 74 18 = 45 38 = 24 47 = 46 35 = 53 28 = 17 55 = 68 26 = 60 14 = 64 55 = 63 47 = 55 48 = 16 37 = 36 38 = 81 76 = 71 47 = 81 63 = 26 68 = 36 2
2、6 = 38 38 = 25 66 = 38 25 = 84 35 = 80 57 = 72 65 = 52 34 = 70 45 = 36 36 = 28 25 = 47 44 = 54 36 = 18 74 = 43 18 = 66 16 = 61 47 = 43 18 = 70 32 = 35 17 = 46 38 = 15 66 = 83 16 = 44 36 = 67 24 = 52 47 = 18 13 = 23 18 = 80 13 = 82 15 = 75 28 = 27 26 = 74 38 = 41 32 = 16 75 = 64 17 = 28 44 = 51 36 = 45 36 = 74 26 = 64 17 = 17 26 = 24 18 = 28 28 = 63 17 = 35 37 = 84 48 = 28 45 = 33 18 = 70 58 = 57 25 = 36 55 = 40 14 = 78 14 = 70 22 = 38 57 = 82 63 = 74 17 = 28 57 = 47 36 = 40 11 = 80 28 = 56 26 = 55 26 = 62 18 = 84 55 =
