‘Another terrific book by Rob Eastaway’ SIMON SINGH

‘A delightfully accessible guide to how to play with numbers’ HANNAH FRY

How many cats are there in the world?

What's the chance of winning the lottery twice?

And just how long does it take to count to a million?

Learn how to tackle tricky maths problems with nothing but the back of an envelope, a pencil and some good old-fashioned brain power.

Join Rob Eastaway as he takes an entertaining look at how to figure without a calculator. Packed with amusing anecdotes, quizzes, and handy calculation tips for every situation, Maths on the Back of an Envelope is an invaluable introduction to the art of estimation, and a welcome reminder that sometimes our own brain is the best tool we have to deal with numbers.

A fiendish collection of over 100 super-tricky brainteasers from puzzle-maestros Rob Eastaway and David Wells.

Puzzles have intrigued and entertained generations of children – and their parents – for over 2,000 years. Here is an irresistible assortment of 100 challenging puzzles, in a sumptuous new edition of this classic book. These brilliant brainteasers range from the neatly lateral to the downright perplexing. From chopping the chocolate to crossing the moat, mystifying matchsticks and a teasing typewriter, 100 Maddening Mindbending Puzzles provides many hours of mind-stretching enjoyment for even the most agile brains. Guaranteed. If you consider yourself a master of logic, a devil with a crossword and a whizz at cracking codes, this is your chance to prove yourself a real smartypants and pit your wits against this devilish collection of games and puzzles. 

A brilliant guide for parents through the troubled waters of GCSE maths - and to help you to help your teenager to feel confident and even enjoy it, especially when studying at home.

In their first, bestselling, book Maths for Mums and Dads Rob Eastaway and Mike Askew helped you and your child make sense of the new methods and topics covered in primary school maths. But as your child embarks on secondary school, two new issues arise. First, in the build-up to GCSE, school children begin to do maths that you probably have never encountered before – or if you have, you never really got it in the first place, and have long since forgotten. Factorising? Finding the locus? Solving for x? Probability distributions? What do these even mean?

More Maths for Mums and Dads gives you all the ammunition to help you to help your teenager get to grips with and feel more confident about – and hopefully even enjoy – GCSE maths. It covers in straightforward and easy-to-follow terms the maths your child will encounter in the build up to GCSE, in many cases gives practical and fun examples of where the maths crops up in the real world. In addition, the authors introduce the notion of estimation and coin a new term, Zequals. Using the Zequals method will help develop your teenager's feel for numbers, which in turn could transform their experience and enjoyment of everyday maths.

Looking for a practical maths guide to help with home schooling? Maths for Mums and Dads is the solution.

Maths for Mums and Dads guides you through the basics of primary school maths and covers the dilemmas and problems you are likely to be confronted with, including:

* number bonds, place value and decimals
* long multiplication and division
* fractions, percentages and decimals
* basic geometry, shapes, symmetry and angles
* data-handling, combinations and chance

Complete with sample questions, mock exam papers and examples of children's errors, Maths for Mums and Dads will challenge and reassure in equal measure.

101 fun maths games and activities for parents to play with kids aged 4 to 14

Need some help with addition? Play a game of Salute
Having trouble with times tables? Try Times Table Donk
Floundering with fractions? Get creative cutting up the toast with your kids at breakfast

Busy mums or dads are crying out for quick and easy ways to help their children with primary school maths and beyond. Here are 101 simple tips, games and activities to make practising maths as engaging and enjoyable as possible, for you and your child. All can be incorporated into the everyday routine – at home and on the go – with minimal fuss and no expensive kit – helping children have fun with numbers. Indeed, most of the time they won’t even realise that maths is involved. Sneaky!

Areas covered include, addition and subtraction, multiplication and division, fractions, ratio and proportion, telling the time, estimation, measurement, geometry and shapes, with an emphasis on problem solving throughout.

Do you feel like you are stuck in a rut? Missing the chance to be really imaginative? Allowing life's opportunities to pass you by? All too often our brains work by habit: we find ourselves thinking in old familiar ways, applying logic that may have worked adequately for us in the past, which can leave us feeling creatively drained. This book offers a whole repertoire of original styles of thinking that will refresh your life - at home and at work, in your relationships and your leisure time. It comes with an explanation of the science-bit behind how restrictive our thinking can become due to factors we may not even be aware of. We can arm ourselves to recognize these boundaries, and we can begin to step beyond them.

The many exciting ideas in Out of the Box will inspire you to look at things in fresh ways. We all have the potential to step out of the box and use our brains in more original, more rewarding ways. This book shows you how.