48乘以0.25乘以1.25(简便计算)
问题描述:
48乘以0.25乘以1.25(简便计算)
答
可以转化为4乘4乘3乘4分之一乘4分之5等于15
答
=40*0.25*(1.25*8)
=10*10
=100
答
48×0.25×1.25
=(40+8)×0.25×1.25
=40×0.25×1.25+8×0.25×1.25
=12.5+2.5
=15
答
=3*4*4*0.25*1.25=3*4*0.25*4*1.25=3*1*5=15