Understanding the number system
By: [by] Roger Osborn [and others].
Series: Merrill's mathematics education series
Publisher: C. E. Merrill
Published: 1968
Place of publication: Columbus, Ohio
Language: eng
Number of pages: 189
Subjects: Mathematics -- Study and teaching (Elementary); Arithmetic -- Foundations.
Notes: Bibliographical footnotes.
Revision of Toward improved understanding of mathematics, part I, by M. V. DeVault, published in 1960, and of part of the combined revised ed. by R. Osborn and others, published in 1961 under the title Extending mathematics understanding.