0.625*31+62.5*0.26+6.25*4.3怎样简算?列式.

问题描述:

0.625*31+62.5*0.26+6.25*4.3怎样简算?列式.

=0.625*31+0.625*26+0.625*43
=0.625*(31+26+43)
=0.625*100
=62.5