2位数加减法口算题100道 (20)
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2位数加减法计算题 100道用时:错误:
31 - 18 = 92 - 29 = 85 - 19 = 44 - 12 = 91 - 41 = 46 + 27 = 93 - 18 = 70 - 52 = 94 - 67 = 82 - 53 = 82 + 15 = 31 + 38 = 56 - 26 = 51 + 49 = 42 + 52 = 11 + 86 = 36 - 11 = 36 + 60 = 17 + 37 = 51 - 40 = 64 + 18 = 59 - 48 = 52 - 37 = 62 + 20 = 84 - 10 = 25 + 38 = 65 - 49 = 71 - 10 = 52 + 24 = 63 - 11 = 47 + 16 = 48 - 25 = 36 + 51 = 48 + 13 = 46 - 27 = 99 - 25 = 15 + 42 = 32 + 16 = 75 - 34 = 68 - 17 = 70 + 21 = 54 + 35 = 61 + 23 = 74 - 45 = 81 - 48 = 95 - 56 = 45 + 48 = 61 + 25 =
40 + 13 = 53 - 26 = 67 + 26 = 61 - 16 = 28 + 70 = 30 + 29 = 70 - 12 = 10 + 28 = 73 + 16 = 41 + 11 = 24 + 28 = 82 - 35 = 59 - 38 = 89 - 49 = 62 - 13 = 27 + 72 = 52 - 28 = 65 - 10 = 13 + 16 = 58 - 29 = 59 + 18 = 64 - 42 = 24 + 59 = 73 - 47 = 23 + 10 = 58 + 20 = 31 + 65 = 43 - 23 = 51 - 17 = 11 + 70 = 62 - 44 = 26 + 57 = 72 - 49 = 61 - 13 = 52 + 19 = 37 - 10 = 65 + 31 = 33 + 29 = 61 - 33 = 36 + 42 = 32 + 67 = 96 - 15 = 52 - 35 = 81 - 17 = 36 + 62 = 10 + 53 = 35 + 53 = 66 - 19 = 50 + 42 = 65 + 15 = 82 - 15 = 98 - 73 =