Join the Number Friends as they embark on an exciting pirate adventure, with lots of doubling fun along the way! This charming book is the second in the ‘Number Friends’ series and has been designed to help young children explore the concept of doubling.
Includes:
- A doubling certificate signed by Tommy and Tilly to cut out and keep
- Instructions to make your own ‘doubling doorway’ – see what you can double at home or school!
- Ideas for further learning
About the Author

Bridget Mather-Scott
Bridget is a qualified Early Years teacher, and lives in Derbyshire with her family.
She wants to help make maths more accessible to all children following a dyslexia diagnosis of her son. Her first book, ‘Number Friends’ looks at number formation and has been created for both parents and teachers to help support children’s learning.