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计算(-1)+2+(——3)+4+(-5)+…+(-2011)+2012=?
(-1)+2+(——3)+4+(-5)+…+(-2011)+2012=?
人气:466 ℃ 时间:2019-11-19 07:19:55
解答
两个分为一组,(-1)+2=1,(-3)+4=1,.,(-2011)+2012=1,则原式=1+1+1+...+1=1*1006=10063Q,我用你的答案了,直接1÷1006=1006答:1006完咯~土豪,我们做朋友吧。我还有很多题要问你呢
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