|-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8)
问题描述:
|-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8)
答
|-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8)
=3/4+3+1/4+1/8-1/4+5/8
=3+1+3/4-1/4
=4又2分之1