负1. 75加2减0.25加4分之1减4分之3加5减2分之1

负1. 75加2减0.25加4分之1减4分之3加5减2分之1
2025-12-25 06:45:12
推荐回答(1个)
回答1:

-1.75+2-0.25+(1/4)-(3/4)+5-(1/2)
=-1.75+2-0.25+0.25-0.75+5-0.5
=4