2.02*18.5简便运算怎么算?

问题描述:

2.02*18.5简便运算怎么算?

2.02*18.5=(2+0.02)*18.5=37+0.37=37.37

2.02*18.5
=(2+0.02)*28.5
=2*18.5+0.02*18.5
=37+0.37
=37.37