black square Book II



The black square is a game based on the times tables practice that encourage thinking, concentration and
observation skills. It stimulates and develops mathematical skills and memory. Curious? Find out why this won’t get
out of your mind.

Recommended by Sociedade Portuguesa de Matemática (SPM), by Associação Professores de Matemática (APM) and by AL (Associação LUDUS).

It contains 30 exercises of various levels of complexity (low and medium).

To order more than 10 units, fill out the form

about the black square

black square is a game that applies the same principles and rules to solve different challenges. Every game consists in the interpretation of a grid and in practicing times table skills so that the player can fill the grid cells – always knowing that the starting point is the black square. A game that crosses the universe of OP Art to surprise us with infinite challenges.

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