Addition and subtraction a cognitive perspective

Dades bibliogràfiques
Altres autors:	Carpenter, Thomas P, eds, Moser, James M., eds, Romberg, Thomas A., eds
Format:	Llibre
Idioma:	English
Publicat:	Hillsdale, NJ Lawrence Earlbaum Associates c1982.
Matèries:	Addition. Subtraction. Mathematical ability > Testing.