Easy math activity book 3 : addition and subtraction (tens and units)
By: Alison Dewsbury.
Contributors: Ontario Institute for Studies in Education.
Publisher: OISE Press
Published: 1983
Place of publication: Toronto
Language: eng
Number of pages: 40
Subjects: Addition -- Study and teaching (Primary); Arithmetic; Subtraction -- Study and teaching (Primary)
Other titles: Addition and subtraction (tens and units).
Notes: Co-published by Ontario Institute for Studies in Education.

For use in primary grades.

CR