19 加法 53 等于多少？
19 + 53 = 72
19加法53 等于 72
竖式演算
验算
- 用减法验算：72 − 53 = 19
- 用减法验算：72 − 19 = 53
相关题目
19 + 52 = 71
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20 + 53 = 73
18 + 53 = 71
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2 + 70 = 72
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