18.6/2.5/0.4
=18.6÷2.5÷0.4
=18.6÷（2.5×0.4）
=18.6÷1=18.6
3.5/0.125
=7/2÷1/8
=28
8.37-3.25-(1.37+17.5)
=8.37-1.37-3.25-17.5
=7-17.5-3.25
=-10.5-3.25=-13.75
18.6/2.5/0.4=?3.5/0.125=?8.37-3.25-(1.37+17.5)=?怎么算 用简便方法
1个回答
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