12 加法 50 等于多少？
12 + 50 = 62
12加法50 等于 62
竖式演算
验算
- 用减法验算：62 − 50 = 12
- 用减法验算：62 − 12 = 50
相关题目
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2 + 60 = 62
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76 - 14 = 62