Addition drill for levels 1-3

Bibliographische Detailangaben
1. Verfasser:	Mock, Valerie E.
Format:	Buch
Sprache:	English
Veröffentlicht:	Belmont, Calif. David S. Lake Publishers c1982.
Schriftenreihe:	A learning workbooks : Mathematics [v.2]
Schlagworte:	Addition > Study and teaching (Primary) Addition > Problems, exercises, etc.