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1、 2位数加减法计算题 100道 用时： 错误： 85 26 = 88 73 = 30 66 = 40 31 = 93 25 = 33 41 = 93 34 = 52 29 = 26 31 = 58 26 = 81 33 = 92 45 = 29 57 = 75 17 = 31 34 = 86 24 = 55 40 = 11 12 = 18 79 = 56 28 = 55 44 = 16 66 = 76 59 = 98 43 = 49 18 = 48 20 = 17 62 = 40 22 = 57 17 = 42 14 = 75 41 = 85 47 = 64 16 = 32 37 = 83 4
2、0 = 28 68 = 41 10 = 71 26 = 71 17 = 39 12 = 68 51 = 61 41 = 87 12 = 79 25 = 60 41 = 24 56 = 26 12 = 35 50 = 18 23 = 27 10 = 34 52 = 82 70 = 11 25 = 35 18 = 72 35 = 31 55 = 74 19 = 78 16 = 54 31 = 56 42 = 59 24 = 18 59 = 43 11 = 48 20 = 62 29 = 10 44 = 39 42 = 51 12 = 83 68 = 98 67 = 85 17 = 40 29 = 72 15 = 13 71 = 77 18 = 98 58 = 68 22 = 82 60 = 24 35 = 60 21 = 75 50 = 86 10 = 18 14 = 17 34 = 39 33 = 35 18 = 47 32 = 15 57 = 94 61 = 41 40 = 86 30 = 21 78 = 89 70 = 43 17 = 62 29 = 32 23 = 37 14 = 25 24 = 15 77 = 99 26 =
