by Joaquín Calvillo Duarte · Blue Yonder Books · tapa blanda · ISBN 9781913607142
VAT included
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This book of mathematical riddles and logic games is ideal for children and adults. With 150 riddles, it encourages mathematical skills and lateral thinking. It is a perfect gift for birthdays or Christmas, designed for children from 10 years old, although the whole family can participate in problem solving.
