| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2006 | 978-1-905255-34-4 | Glyn Saunders Jones · Gill Saunders Jones | Lluosi a Rhannu: Multiplying and Dividing |
| '' | 978-1-905255-36-8 | '' | Tablau Lluosi: Times Table |
| '' | 978-1-905255-38-2 | Glyn Saunders · Gill Saunders | Cyfrif: Counting |