42 加法 50 等于多少？
42 + 50 = 92
42加法50 等于 92
竖式演算
验算
- 用减法验算：92 − 50 = 42
- 用减法验算：92 − 42 = 50
相关题目
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41 + 50 = 91
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2 + 90 = 92
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