(3.8-3.8*0.9)*(0.45-0.35)用简便方法计算
问题描述:
(3.8-3.8*0.9)*(0.45-0.35)用简便方法计算
答
(3.8-3.8*0.9)*(0.45-0.35)
=3.8*(1-0.9)*0.1
=3.8*0.01
=0.038