6.4乘2.56+0.64乘73.4+64除以100
问题描述:
6.4乘2.56+0.64乘73.4+64除以100
简便计算
答
6.4*2.56+0.64*73.4+64/100
=(6.4/10)*(2.56*10)+0.64*73.4+0.64
=0.64*25.6+0.64*73.4+0.64
=0.64*(25.6+73.4+1)
=0.64*100
=64