|-0.75|+(+3又1/4)-(-0.125)-|-0.25|+(+5/8)
人气:369 ℃ 时间:2020-02-02 22:40:36
解答
|-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
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