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Buna,ma ajutati?
Ex:297+395-475= 297+395=692-475=217

88:4:2X8=
100-80:2+3X3X3=
600:8:3+525:5-720:9=
9+(9X9:9-9) +220-20X0=
12X10:6-(200-20):9+36:2-2=