by Ramón Rubio Silvestre · RUBIO · tapa blanda · ISBN 9788485109500
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«Operaciones RUBIO 1» is the addition-without-carrying exercise book by Ramón Rubio Silvestre, published by RUBIO in A5 format (20 pages, in Spanish).
Math activity book for children aged 6 to 7 focused on addition without carrying. It includes exercises to color, add and write the result in boxes, as well as everyday problems, such as sharing apples, to practice logical-mathematical reasoning and number handling.
Number 1 of the RUBIO Operations and Problems collection. Original edition 1977; new updated and improved edition 2018.
Works as reinforcement material in primary education, useful both for working in class and for practicing at home.
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