The product has been added to your basket. Click on 'View your Basket' to see your full basket.
A handy monthly magazine for those who love a number challenge.
Order before 2pm Mon-Fri for same day dispatch by Royal Mail 2nd Class.
For those who love a maths challenge - Numbers engaged features the best threading puzzles.
Please click the button to accept our cookies. If you continue to use the site, we'll assume you're happy to accept the cookies anyway.