IQ and his friends in the country of Mathematics - 4th grade of Elementary School
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Product Description
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 20 Exercise Units, 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 textbook of the 4th grade for Mathematics and works repetitively and creatively at any time.
