by Ismael Sousa Martín, Equipo Didáctico José Echegaray · Bruño · tapa blanda · ISBN 9788421640357
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«Problemas de sumar y restar - iniciación» is the math workbook no. 13 by Ismael Sousa Martín and the José Echegaray Teaching Team, in softcover.
School arithmetic material for the first years of elementary education, focused on solving simple addition and subtraction problems. It offers progressive exercises and activities based on everyday situations so children can consolidate basic operations, both in class and at home.
Workbook 13 in Bruño's Math Workbooks series is published in softcover, with 32 pages, in Spanish.
For elementary students who are starting arithmetic and need to practice addition and subtraction, as support in the classroom or at home.
