80 乘法 42 等于多少?
80 × 42 = 3360
80乘法42 等于 3360
竖式演算
验算
- 用除法验算:3360 ÷ 42 = 80
- 用除法验算:3360 ÷ 80 = 42
相关题目
80 × 41 = 3280
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78 × 42 = 3276
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