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calculeaza , apoi scroe A(adevarat) sai F (fals). 626+248=485+389............ 329+467=396+382............. 147+638=574+384.........

Răspuns :

626+248=485+389,874=874(a)
329+467=396+382,796=778(f)
147+638=574+384,785=958(f)