1-0.5-0.05-0.005-0.0005

问题描述:

1-0.5-0.05-0.005-0.0005
简便

1-0.5-0.05-0.005-0.0005=0.4445思路那1-0.5-0.05-0.005-0.0005=1-(0.5+0.05+0.005+0.0005)=1-0.5555=0.4445