What to do when you can't add and subtract
By: by Steve Chinn
Edition: 2nd ed.
Series: What to do when you can't--
Publisher: Egon Publishers
Published: 2009
Place of publication: Outwood, Wakefield [England]
Language: eng
Number of pages: 149
ISBN-13: 9781904160946
Subjects: Addition; Study and teaching; Subtraction; Problems, exercises
Notes: Previous edition: 1999.

"A fresh approach to core mathematical skills"--Cover