0.39/0.4/2.5*1.61简便方法计算
问题描述:
0.39/0.4/2.5*1.61简便方法计算
答
0.39÷0.4÷2.5*1.61
=0.39÷(0.4×2.5)*1.61
=0.39÷1*1.61
=0.39*1.61
=0.6279
这可是最先回答的哟.