简便计算：0.8乘0.3乘1.25
问题描述：
简便计算：0.8乘0.3乘1.25
答
0.8*1.25*0.3=4/5*5/4*3/10=0.3
答
0.8*0.3*1.25
=0.8*1.25*0.3
=1*0.3
=0.3
答
0.8*1.25*0.3
=1*0.3
=0.3
答
0.8*1.25*0.3=1*0.3=0.3
调一下顺序
答
0.8*0.3*1.25
=0.8*1.25*0.3
=1*0.3
=0.3
0.125*8=1
0.25*4=1
这些都要牢记