12又2分之1的60%加上5等多少?
问题描述:
12又2分之1的60%加上5等多少?
答
12又1/2×60%+5
=12.5×0.6+5
=7.5+5
=12.5
12又2分之1的60%加上5等多少?
12又1/2×60%+5
=12.5×0.6+5
=7.5+5
=12.5