Toby Collard: That's all from Pop Maths. Thanks for playing, and have fun with this fiendish final equation

Toby Collard: We're getting close to the end of term exam ... so see if you can bag a prize this week

Toby Collard: We're coming up to the end of term, so not much time left to win a popical maths prize

Toby Collard Thirteen is unlucky for some. But not for the winner of this week's pop maths. It could be you!

More from the mad, musical, mathematical world of Pop Maths

Toby Collard: Sir Bob Geldof loves Mondays now that he plays our mathematical music quiz every week (probably)

Toby Collard: The sun is shining, the birds are singing, and three fluffy new questions are bouncing around merrily in the Pop maths field

Toby Collard: Back from the snow, here's your next batch of band-related equations

More devilish data based on the names of relatively obscure pop groups – enjoy!

Toby Collard: Coats off class and get ready to begin, because three more pop maths teasers await

guardian.co.uk/music: Heads up class, the weekly workout for your groovier grey cells is here with three more Pop Maths puzzlers

Toby Collard: We're back from our holidays with a fifth batch of musical maths problems

Toby Collard: A fourth batch of musical maths problems

Get set to bend your brains around another set of musical maths problems

Toby Collard's (already) wildly popular musical maths quiz is back. Get your thinking caps on ...