Răspuns :
operatia e formata numai din adunari, asa ca pur si simplu le iei pe rand si le rezolvi
146+38+212+24+17+55+83+145
184+212+24+17+55+83+145
396+24+17+55+83+145
420+17+55+83+145
437+55+83+145
492+83+145
575+145
720
146+38+212+24+17+55+83+145
(Adunam)
184+212+24+17+55+83+145
396+24+17+55+83+145
420+17+55+83+145
437+55+83+145
492+83+145
575+145
720
(Adunam)
184+212+24+17+55+83+145
396+24+17+55+83+145
420+17+55+83+145
437+55+83+145
492+83+145
575+145
720