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一根钢管长12分之3米,锯下3分之一,还剩下多少米?

更新时间: 2021-05-11 23:09:20     

1、一根钢管长12分之3米,锯下3分之1,则锯下:3/12×1/3=1/12(米);锯下它的3分之一后,还剩下:3/12-1/12=2/12(米)。

2、一根钢管长12分之3米,锯下3分之1,还剩下:3/12-3/12×1/3=2/12(米)。

关键词: 钢管 分之 之一 剩下 多少

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