105.7*0.25-5.7/4怎样简算急
问题描述：
105.7*0.25-5.7/4怎样简算
急
答
0.25就是1/4啊
(105.7-5.7)/4=25
答
(105.7-5.7)/4=25
答
105.7*0.25-5.7/4
=100×0.25+5.7×0.25-5.7×0.25
=25