The Silly Questions Amnesty is going on hiatus for the summer. You can still leave comments here if there's anything you'd like me to answer - depending on how the Mathematical Ninja's holidays pan out, SQA might be back in September. We'll see!
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.