用简便算法计算:0.125×3.2-0.25×0.16=
问题描述:
用简便算法计算:0.125×3.2-0.25×0.16=
答
0.125×3.2-0.25×0.16
=0.125*8*0.4-0.25*4*0.04
=1*0.4-1*0.04
=0.4-0.04
=0.36