zou66644
花朵
共回答了13个问题采纳率:92.3% 举报
-40-28-(-19)+(-24)-(-32)=-40-28+19-24+32
=-92+51=-41
(-72)-37-(-22)-17=-72-37+22-17=-126+22
=-104
(+18)-(+6)-(+19)-(-20)—(-5)
=18-6-19+20+5=43-25=18
0-(-5.35)-(+1.35)—(-7)
=5.35-1.35+7=11
(-3)-(+7)+4+(+3)-(-5)-4
=-3-7+4+3+5-4=-2
(-8.62)+(+3.29)-6.38+(-7.39)
=-8.62+3.29-6.38-7.39
=-22.39+3.29=-19.1
1年前
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