0.5*0.8*0.04*1.25*02.*0.025
问题描述：
0.5*0.8*0.04*1.25*02.*0.025
答
(0.5*0.2)(0.8*1.25)(0.04*0.025)=0.1*1*0.001=0.0001
0.5*0.8*0.04*1.25*02.*0.025
(0.5*0.2)(0.8*1.25)(0.04*0.025)=0.1*1*0.001=0.0001