2.5*8.74*1.25*0.4*0.8简便计算咋算
问题描述:
2.5*8.74*1.25*0.4*0.8简便计算咋算
答
2.5*8.74*1.25*0.4*0.8
=(2.5*0.4)*(1.25*0.8)*8.74
=1*1*8.74
=8.74