90 乘法 3 等于多少?
90 × 3 = 270
90乘法3 等于 270
竖式演算
验算
- 用除法验算:270 ÷ 3 = 90
- 用除法验算:270 ÷ 90 = 3
相关题目
90 × 2 = 180
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90 × 7 = 630
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