87 乘法 7 等于多少?
87 × 7 = 609
87乘法7 等于 609
竖式演算
验算
- 用除法验算:609 ÷ 7 = 87
- 用除法验算:609 ÷ 87 = 7
相关题目
87 × 6 = 522
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87 × 4 = 348
87 × 10 = 870
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