7.53×0.5-3.53除以2(简便计算)
问题描述:
7.53×0.5-3.53除以2(简便计算)
答
7.53×0.5-3.53÷2
=7.53×0.5-3.53×0.5
=(7.53-3.53)×0.5
=4×0.5
=2