by Vv.Aa. · Santillana Educación, S.L. · tapa blanda · ISBN 9788468012377
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«Cálculo mental 1» is the math exercise book by Vv.Aa., published by Santillana Educación in paperback (32 pages, in Spanish).
School workbook focused on mental math for the first cycle of elementary school. It proposes exercises with addition tables and numbers up to 49, with place value activities and adding tens. Includes strategies such as simple counting, composing and decomposing numbers, and the commutative property of addition. The book includes an answer key for easy correction.
This copy is workbook 1 of the Santillana Cuadernos series, designed for the first grade of elementary school.
Recommended for first-grade elementary school children who want to reinforce mental math and basic addition independently.
