3 乘法 3 等于多少?
3 × 3 = 9
3乘法3 等于 9
竖式演算
验算
- 用除法验算:9 ÷ 3 = 3
- 用除法验算:9 ÷ 3 = 3
相关题目
3 × 2 = 6
3 × 4 = 12
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3 × 7 = 21
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