primul ex. a.264264:132+500:25x40-1=2002+20x40-1=2002+800-1=2801 b.78:(9+5x4-36+49x(78-64)x74)=78:(9+20-36+49x14)x74=78:(9+20-36+686)x74=(78:679)x74=37x74=2738=nu am vazut bine ex nu l-am prea inteles. c.79x43-79+42x21=3397-79+882=4200 sper ca am ajutat
