Santillana Texto Editorial S.A · tapa blanda · ISBN 9788468012407
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«Cálculo mental 4» is the mental arithmetic exercise book published by Santillana Texto Editorial, in paperback (32 pages, in Spanish).
This book presents mental arithmetic activities for students in 4th grade of Primary: addition, subtraction and multiplication with numbers up to 9,999. It works on strategies such as counting, grouping, composing, decomposing, sequencing, approximating, ordering and compensating, as well as the commutative and associative properties of addition and multiplication.
It belongs to the SantillanaCuadernos collection, where it is number 4. The cover indicates that it includes an answer key. The publication date is March 15, 2012.
For students in 4th grade of Primary who want to practice mental arithmetic and consolidate basic operations with numbers up to 9,999.
