Subtraction drill for levels 1-3

Detalles Bibliográficos
Autor principal:	Mock, Valerie E.
Formato:	Libro
Lenguaje:	English
Publicado:	Belmont, Calif. David S. Lake Publishers c1982.
Colección:	A learning workbooks : Mathematics [v.3]
Materias:	Subtraction > Study and teaching (Primary) Subtraction > Problems, exercises, etc.