71 加法 58 等于多少？
71 + 58 = 129
71加法58 等于 129
竖式演算
验算
- 用减法验算：129 − 58 = 71
- 用减法验算：129 − 71 = 58
相关题目
71 + 57 = 128
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43 × 3 = 129