From the mind of comedian David Walliams, this collection of Gangsta Granny's Mental Maths Games is the perfect problem-solving gift. Each card is delightfully illustrated with characters from the best-selling book and the aim of the game is add, subtract and multiply to get the highest score.

Features:

• Collection of mental arithmetic games
• Contains 48 cards
• Illustrated by Tony Ross
• Suitable for ages 5+