18 乘法 40 等于多少?
18 × 40 = 720
18乘法40 等于 720
竖式演算
验算
- 用除法验算:720 ÷ 40 = 18
- 用除法验算:720 ÷ 18 = 40
相关题目
18 × 39 = 702
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