Leffingwell, Richard.

Subtracting and taking away / Richard Leffingwell. - Chicago : Heinemann Library, c2006. - 24 p. : col. ill. ; 23 cm. - Basic math Heinemann read and learn . - Leffingwell, Richard. Basic math. .

Includes index.

ISBN: 1403481563 (library binding-hardcover) 140348161X (pbk.)

LCCN: 2006005176

Subjects--Topical Terms:
Subtraction
Group theory.

LC Class. No.: QA115 / .L45 2006

Dewey Class. No.: 513.2/12