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(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75
人气:296 ℃ 时间:2019-12-01 13:06:42
解答
(-1.25)+3.85+(-3又1/4)+(-1/2)+1 .75
= -1.25-3.25-0.5+3.85+1.75
= -5+5.35
=0.35
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