Addition and subtraction a cognitive perspective

Detalles Bibliográficos
Outros autores:	Carpenter, Thomas P, eds, Moser, James M., eds, Romberg, Thomas A., eds
Formato:	Libro
Idioma:	English
Publicado:	Hillsdale, NJ Lawrence Earlbaum Associates c1982.
Subjects:	Addition. Subtraction. Mathematical ability > Testing.