Editorial Rubio · tapa blanda · ISBN 9788485109586
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«Operaciones RUBIO 5» is the maths exercise book by Ramón Rubio Silvestre and Enrique Rubio Polo SLU, published by Editorial Rubio in paperback (20 pages, in Spanish).
Workbook from the Rubio collection for practising addition, subtraction, multiplication and division with multi-digit numbers. It presents simple everyday problems, such as working out the cost of two cars or the change left when buying bicycles, with combined operations to solve step by step. Designed to reinforce calculation and mathematical reasoning progressively and independently.
It belongs to the Operaciones y Problemas RUBIO collection, is number 5 in the series and is published in A5 format with 20 pages in Spanish. The edition corresponds to the 2018 revision of a title originally published in 1977.
Recommended for children aged 9 and over, it is a classic school reinforcement material for primary education students who need to practise operations with multi-digit numbers.
