IQ and his friends in the country of Mathematics - 6th grade of elementary school
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An original Math book with a variety of creative exercises, but enriched with puzzles and riddles and all kinds of spiritual games. It is structured in twenty modules of exercises, of graded difficulty and is accompanied by a short theory, but also analytical solutions with various ways-strategies that help in their more complete understanding. Discreetly monitors the material of the 6th grade textbook for Mathematics and works repetitively and creatively at any time.