by Ramón Rubio Silvestre · Editorial Rubio · tapa blanda · ISBN 9788485109654
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«Problemas Rubio 10» is the maths problem workbook by Ramón Rubio Silvestre, published by Editorial Rubio in paperback (20 pages, in Spanish).
This workbook presents calculation problems for primary school pupils: addition, subtraction and single-digit multiplication. These exercises develop logical-mathematical reasoning and reinforce mastery of calculation and handling of numbers, to consolidate what has been learned at school.
Workbook number 10 in the «Operaciones y Problemas RUBIO» series; A5 format. First published in 1977; the current edition is the new 2018 updated and improved edition.
Recommended for children aged 7 to 8 as reinforcement material in mathematics for primary education.
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