
by Francesc Xavier Alegria Folch, Lluïsa Girondo Pérez · Editorial Casals · tapa blanda · ISBN 9788421831779

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«Encaix de nombres 10» is a math workbook by Francesc Xavier Alegria Folch and Lluïsa Girondo Pérez (Casals, paperback, 32 pages, in Catalan).
Workbook for elementary school that aims to develop agility in calculation through reasoned practice. The exercises work on the relationships between the different operations, the application of their properties and the understanding of the verbal and symbolic patterns of the numeration system.
Published in 2005, it is number 10 in the «Encaix» collection and is aimed at the second cycle of elementary education, for children aged 8 to 10.
For schoolchildren aged 8 to 10 who want to practice calculation and numeration in Catalan.
