75 加法 42 等于多少？
75 + 42 = 117
75加法42 等于 117
竖式演算
验算
- 用减法验算：117 − 42 = 75
- 用减法验算：117 − 75 = 42
相关题目
75 + 41 = 116
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74 + 42 = 116
76 + 42 = 118
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