-19.8-(-20.3)-(+20.2)-10.8
-19.8-(-20.3)-(+20.2)-10.8
數(shù)學(xué)人氣:866 ℃時間:2020-06-09 10:15:33
優(yōu)質(zhì)解答
-1+-2-3+4-5+6-7 =-1-2-3+4-5+6-7 =-6-1-1=-8(2)-19.8-(-20.3)-(+20.2)-10.8=-19.8+20.3-20.2-10.8=-20+0.2+20+0.3-20-0.2-10-0.8=-20+20-20-10+0.3+0.2-0.2-0.8=-30-0.5=-30.5(3)1-10.7-(-22.9)-|-10分之23...還有嗎
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