by Ismael Sousa Martín · Bruño · tapa blanda · ISBN 9788421612866
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«Cuaderno Matemáticas 15» is the addition and subtraction problem workbook by Ismael Sousa Martín, published by Bruño in paperback (32 pages, in Spanish).
This activity workbook for elementary school math presents combined addition and subtraction problems with natural numbers, and includes operations with prices such as €15 + €6 or €50 − €21. It offers exercises to practice calculation and problem-solving, both in the classroom and at home.
It is workbook number 15 in the «C. Matemáticas» series by Bruño, within its «Problemas» collection. It was published in April 2000.
It is suitable for elementary school students who need to practice addition and subtraction, both in the classroom and at home.
