38 加法 77 等于多少？
38 + 77 = 115
38加法77 等于 115
竖式演算
验算
- 用减法验算：115 − 77 = 38
- 用减法验算：115 − 38 = 77
相关题目
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23 × 5 = 115
5 × 23 = 115