Odpowiedzi

2009-11-12T19:30:49+01:00
2009-11-12T19:30:58+01:00
(2*(25-(30-15))*3= (2*(25-15))*3 = (2*10)*3 = 20*3 = 60
2009-11-12T19:32:32+01:00
(2*(25-(30-15)*5))*3=(2*(25-15*5))*3=(2*25-75)*3=(50-75)*3=-25*3=-75