by R.M. Martín · Editorial Edarca · tapa blanda · ISBN 9788486545338
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«Castillo Cálculo 5: Multiplicar por una cifra» is a math exercise book by R.M. Martín, in paperback, published by Editorial Edarca.
Castillo Cálculo 5 is an elementary school math book focused on multiplying by a single digit. It brings together calculation exercises aimed at helping students practice this operation and reinforce their learning.
Fifth book in the Castillo Cálculo series, published by Editorial Edarca in 2013, with 16 pages in Spanish.
Recommended for elementary school students aged 7 and up, as a supplement for practicing multiplication in class or at home.
Richard M. Lerner is professor of Human Development at Tufts University, occupying the Bergstrom Chair in Applied Developmental Science. Also at Tufts, he directs the Institute for Applied Research in Youth Development. He did his undergraduate work at Hunter College, graduating in 1966.
