A knowledge of the times tables will serve you well in all levels of maths, including KS3 Maths. Most of us learn the times tables up to 12 but we thought you'd like a bit more of a challenge so we're going all the way up to 20, starting with this quiz on the 13 times table.

39, 78 and 208 are some of the answers in the 13 times table. Quite big aren't they? The number 13 isn't everybody's favourite. Writer Paul Auster said, "I've dealt with numbers all my life, of course, and after a while you begin to feel that each number has a personality of its own. A twelve is very different from a thirteen, for example. Twelve is upright, conscientious, intelligent, whereas thirteen is a loner, a shady character who won't think twice about breaking the law to get what he wants..."

Practise, practise and more practise is what it takes to master the times tables. Have a go at this quiz and see whether the number 13 is lucky or unlucky for you!