Va Roggg !!!!Urgenttt

75:5-4*4=
15-16=-1(SE DEGRADEAZA IN -1)
100*3*2:3=
100*6:3=
100:2=200
PAHAR=1000000
CHESTIE ALBASTRA =1000
(17+60+23)*5
90*5=450
449/449+445=
1+445=450