80 加法 58 等于多少？
80 + 58 = 138
80加法58 等于 138
竖式演算
验算
- 用减法验算：138 − 58 = 80
- 用减法验算：138 − 80 = 58
相关题目
80 + 57 = 137
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2 × 69 = 138
3 × 46 = 138