OK! This is the official first Flying Colours Free-for-all Friday! Cue fanfare!

It's your chance to pick my brain about whatever's on your mind about maths. Got a question you've been struggling with? Got a topic you just can't get your head around? Found a great maths resource I might not have seen? Pop it in the comments and I'll get back to you as quickly as I can.

## Colin

Colin is a Weymouth maths tutor, author of several Maths For Dummies books and A-level maths guides. He started Flying Colours Maths in 2008.
He lives with an espresso pot and nothing to prove.