-1.53乘以0.75+0.53乘以四分之三-3.4乘以0.75等于几
问题描述:
-1.53乘以0.75+0.53乘以四分之三-3.4乘以0.75等于几
答
-1.53乘以0.75+0.53乘以四分之三-3.4乘以0.75
=(-1.53+0.53-3.4)×0.75
=(-4.4)×4分之3
=-3.3