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Ajutor ex.16!!!Dau coronitaaa

Ajutor Ex16Dau Coronitaaa class=

Răspuns :

a)[8+(-72)]:2=-64:2=-32
b)[-20+(-44)]:2=(-20-44):2=-64:2=-32
c)[-5+(-15)]:2=(-5-15):2=-20:2=-10