by Equipo Didáctico José Echegaray · BRUNO · tapa blanda · ISBN 9788421640371
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«Cuadernos de Matemáticas 15»: addition and subtraction workbook with natural numbers, by Equipo Didáctico José Echegaray, in paperback.
Activity workbook focused on solving addition and subtraction problems with natural numbers. It includes exercises that combine both operations to practice calculation and mathematical reasoning, with a school-focused approach designed to reinforce what has been learned in class.
It corresponds to number 15 of the «Cuadernos de Matemáticas» collection from Editorial Bruno; it was published in 2004 and is written in Spanish.
For students who need to reinforce addition and subtraction with natural numbers, both in class and at home.
