简便计算:0.625*0.5+8分之5+2分之1*0.625
问题描述:
简便计算:0.625*0.5+8分之5+2分之1*0.625
答
0.625*0.5+8分之5+2分之1*0.625
=0.625(0.5+1+0.5)
=0.625x2
=1.25