18乘于0.92减3.93等于 怎么 简算?
问题描述:
18乘于0.92减3.93等于 怎么 简算?
答
18乘于0.92减3.93
=18×(1-0.08)-3.93
=18-18×0.08-3.93
=18-1.44-3.93
=18-(1.44+3.93)
=18-5.37
=12.63