By practicing logic games, a series of experiences are accumulated that allow children to integrate sets, logical concepts and, finally, numbers into an organic system. Their formative value increases as the one who leads them gives free rein to the basic principles that guide them. The game can be used successfully both in lessons aimed at forming or consolidating skills, but also in consolidation or assessment lessons. By traversing the path from concrete to abstract and from abstract to concrete in the formation of mathematical notions, performing daily calculations with different numbers, penetrating into the essence of each problem to establish the correlation between known and sought quantities, mental processes of the child, his thinking operations are stimulated by an activity of effective and motivational involvemen