42 加法 77 等于多少？
42 + 77 = 119
42加法77 等于 119
竖式演算
验算
- 用减法验算：119 − 77 = 42
- 用减法验算：119 − 42 = 77
相关题目
42 + 76 = 118
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7 × 17 = 119
17 × 7 = 119