17.8除以1.78乘4的积{需要简便计算}

问题描述:

17.8除以1.78乘4的积{需要简便计算}

17.8/(1.78*4)
=17.8/1.78/4
=10/4
=2.5

17.8除以1.78乘4的积
=1.78/1.78*10*4
=10*4
=40

=17.8÷1.78÷4
=10÷4
=2.5