**An engaging, accessible introduction into how numbers work and why we shouldn’t be afraid of them, from maths expert Rachel Riley.** Do you know your fractions from your percentages? Your adjacent to your hypotenuse? And who *really* knows how to do long division, anyway? Puzzled already? Don’t blame you… But fret not! You won’t be At Sixes and Sevens for long. In this brilliant, well-rounded guide, Countdown’s Rachel Riley will take you back to the very basics, allow you to revisit what you learnt at school (and may have promptly forgotten, *ahem* ), build your understanding of maths from the get-go and provide you with the essential toolkit to gain confidence in your numerical abilities. Discover how to divide and conquer, make your decimal debut, become a pythagoras professional and so much more with these easy-to-learn tips and tricks. Packed full of working examples, fool-proof methods, quirky trivia and brainteasers to try from puzzle-pro Dr Gareth Moore, this book is an absolute must-read for anyone and everyone who ever thought maths was ‘above’ them. Because the truth is: you *can* do it. What’s more, it can be pretty fun too!