42 加法 4 等于多少？
42 + 4 = 46
42加法4 等于 46
竖式演算
验算
- 用减法验算：46 − 4 = 42
- 用减法验算：46 − 42 = 4
相关题目
42 + 3 = 45
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42 + 8 = 50
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43 + 4 = 47
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