Public Libraries of Suffolk County, New York
372.7/2044
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372.7/2044
Code
372.7/2044
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Help your child with numeracy ages 7-11, Rosemary Russell
Essentials of elementary mathematics, C. Alan Riedesel, James E. Schwartz
Developing number sense, grades 3-6, Rusty Bresser and Caren Holtzman
Young children reinvent arithmetic, implications of Piaget's theory
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