13 加法 51 等于多少?
13 + 51 = 64
13加法51 等于 64
竖式演算
验算
- 用减法验算:64 − 51 = 13
- 用减法验算:64 − 13 = 51
相关题目
13 + 50 = 63
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13 + 47 = 60
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12 + 51 = 63
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