6*4分之+13处4-18*0.25用简便计算怎么做快 快 快

问题描述:

6*4分之+13处4-18*0.25用简便计算怎么做
快 快 快

6*4分之+13处4-18*0.25
=(6+13-18)/4
=1/4

6*(1/4)+13/4-18*0.25
=(6+13-18)*(1/4)
=1*(1/4)
=1/4