59 加法 83 等于多少？
59 + 83 = 142
59加法83 等于 142
竖式演算
验算
- 用减法验算：142 − 83 = 59
- 用减法验算：142 − 59 = 83
相关题目
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71 × 2 = 142
2 × 71 = 142