Introduces the principles of addition as one cat en route to a picnic is joined by additional cats and other animals who either help or hinder him on his way.
- ISBN10 0744500419
- ISBN13 9780744500417
- Publish Date July 1983
- Publish Status Out of Print
- Out of Print 8 November 2009
- Publish Country GB
- Imprint Walker Books Ltd
- Format Paperback
- Language English