Subtraction drill for levels 1-3

Bibliografiske detaljer
Hovedforfatter:	Mock, Valerie E.
Format:	Bog
Sprog:	English
Udgivet:	Belmont, Calif. David S. Lake Publishers c1982.
Serier:	A learning workbooks : Mathematics [v.3]
Fag:	Subtraction > Study and teaching (Primary) Subtraction > Problems, exercises, etc.