Răspuns:
175+235=410
proba:410-235=175
175+325=500
proba:500-325=175
175+387=562
proba:562-387=175
175+452=627
proba:627-452=175
175+678=853
proba:853-678=175
175+536=711
proba:711-536=175
175+585=760
proba:760-585=175
175+835=1010
proba:1010-835=175