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1、 2位数加减法计算题 100道 用时： 错误： 18 36 = 80 53 = 38 36 = 26 67 = 47 36 = 53 14 = 63 45 = 82 23 = 73 45 = 14 27 = 78 18 = 81 72 = 38 24 = 80 51 = 45 18 = 77 18 = 84 27 = 36 18 = 16 46 = 18 53 = 81 43 = 70 24 = 64 28 = 81 55 = 17 54 = 18 66 = 77 16 = 13 28 = 54 28 = 36 18 = 46 18 = 70 37 = 72 66 = 81 68 = 62 2
2、6 = 15 46 = 37 18 = 77 17 = 86 48 = 64 47 = 82 74 = 54 28 = 62 43 = 38 17 = 17 47 = 45 16 = 73 57 = 80 41 = 67 48 = 68 15 = 83 15 = 65 17 = 83 28 = 38 37 = 25 16 = 67 38 = 46 47 = 17 18 = 75 17 = 27 18 = 66 17 = 77 38 = 50 23 = 52 27 = 68 25 = 18 73 = 16 67 = 71 68 = 35 16 = 25 58 = 28 24 = 36 47 = 71 62 = 82 13 = 70 56 = 62 56 = 15 48 = 51 37 = 56 18 = 28 37 = 33 27 = 60 55 = 72 26 = 27 35 = 70 22 = 57 24 = 44 35 = 76 58 = 66 18 = 80 37 = 15 78 = 37 56 = 83 14 = 35 36 = 40 26 = 23 17 = 16 16 = 18 74 = 71 12 = 35 48 =
