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  • Użytkownik Zadane
2009-09-09T17:11:46+02:00
A)(-2)+(-8)-(+6)-(-4)=-2-8-6+4=-12
b)(+12)-(-16)-(+6)+(+20)=12+16-6+20=42
c)-20-(-5)+(-17)-(-3)=-20+5-17+3=-29
d)(-4+7)-(-10-12)=3+10+12=25
e)-(-11+14)-(16-13)=11-14-16+13=-6
f)-(12-6)+(4-9)= -12+6+4-9=-11
2009-09-09T17:15:23+02:00
A)-2-8-6+4=-12
b)12+16-6+20=42
c)-20+5-17+3=-29
d)3+22=25
e)-3-3=-6
f)-6-5=-11