Mental arithmetic
By: [series concept by Brian Knapp and Duncan McCrae ; text contributed by Brian Knapp and Colin Bass].
Contributors: McCrae, Duncan.; Bass, Colin.
Series: Math matters! -- 13
Publisher: Grolier Educational; Grolier Academic Reference; Brand: Grolier Academic Reference
Published: 1999
Place of publication: Danbury, CT
Language: eng
Number of pages: 48
Subjects: Arithmetic, Mental -- Juvenile literature; Mathematics -- Juvenile literature; Arithmetic -- Study and teaching (Primary)
Genres: Juvenile literature.