Oblicz.
-1+5=
-5-(-5)=
6+-8=
7-12=
-6+4=
-9+(-8)
I jak to sie oblicza? jakaś regułka moze czy cos :P
-1+5=4
-5-(-5)=-5+5=0
6+-8=6-8=-2
7-12=-5
-6+4=-2
-9+(-8)=-9-8=-17
- i - daje +
- i + (oraz odwrotnie) daje -
-5-(-5)=0 bo - i - daje +
6+(-8)=-2
-9+(-8)=-17 bo - i + daje -
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-1+5=4
-5-(-5)=-5+5=0
6+-8=6-8=-2
7-12=-5
-6+4=-2
-9+(-8)=-9-8=-17
- i - daje +
- i + (oraz odwrotnie) daje -
-1+5=4
-5-(-5)=0 bo - i - daje +
6+(-8)=-2
7-12=-5
-6+4=-2
-9+(-8)=-17 bo - i + daje -