71 加法 4 等于多少？
71 + 4 = 75
71加法4 等于 75
竖式演算
验算
- 用减法验算：75 − 4 = 71
- 用减法验算：75 − 71 = 4
相关题目
71 + 3 = 74
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71 + 1 = 72
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71 + 8 = 79
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