13 加法 48 等于多少?
13 + 48 = 61
13加法48 等于 61
竖式演算
验算
- 用减法验算:61 − 48 = 13
- 用减法验算:61 − 13 = 48
相关题目
13 + 47 = 60
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14 + 48 = 62
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