42 加法 5 等于多少？
42 + 5 = 47
42加法5 等于 47
竖式演算
验算
- 用减法验算：47 − 5 = 42
- 用减法验算：47 − 42 = 5
相关题目
42 + 4 = 46
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42 + 8 = 50
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41 + 5 = 46
43 + 5 = 48
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