Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
This series on Mental Maths has been developed to improve mathematical skills of young children.The books include various mathematical problems and the correct methodology for solving them,several illustrative examples and many unsolved problems for practice which will help strengthenthe basic concepts of mathematics.