20 乘法 23 等于多少?
20 × 23 = 460
20乘法23 等于 460
竖式演算
验算
- 用除法验算:460 ÷ 23 = 20
- 用除法验算:460 ÷ 20 = 23
相关题目
20 × 22 = 440
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