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cum rezolv 12+(-8),0+(-6),8+(-8),15+(-14),-3+(+3),-21+(+23),-3+(+17),-9+(+8)​

Răspuns :

12-8=4
0-6=-6
8-8=0
15-14=1
-3+3=0
-21+23=2
-3+17=14
-9+8=-1

Ai grija cu semnele!

Succes!
Coroana?