20 加法 5 等于多少?
20 + 5 = 25
20加法5 等于 25
竖式演算
验算
- 用减法验算:25 − 5 = 20
- 用减法验算:25 − 20 = 5
相关题目
20 + 4 = 24
20 + 6 = 26
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20 + 7 = 27
20 + 2 = 22
20 + 8 = 28
20 + 1 = 21
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21 + 5 = 26
22 + 5 = 27
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2 + 23 = 25
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