Editorial Rubio · tapa blanda · ISBN 9788485109593
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«Operaciones Rubio 5A» is the arithmetic workbook by Ramón Rubio Silvestre, published by Editorial Rubio in paperback (20 pages, in Spanish).
Math activity workbook for primary education with exercises in addition, subtraction, multiplication, and division of multi-digit numbers. Includes contextualized problems with prices and measurements, chains of division series, and proposals to invent operations from a result; all designed to practice written calculation with progressive difficulty.
Volume 5A of the Rubio Operations and Problems collection; A5 format and recommended age 10 to 11 years.
School reinforcement material for primary education, intended to complement classroom teaching of the subject.
