cuburi mari =85×7=595 problema 9
cuburi mici =95×3=285
cuburi mari +mici = 595+285=880
cuburi mijlocii= 950 -880 =70
cuburi mijloci =70×2 =140
problema 10
piese puzzle =55×5= 275
piese puzzle =45×5 =225
primul mod = 275 +225 =500
al doilea mod = 55×5 +45×5 =275 +225 = 500
