Rob Eastaway

Does that statistic make sense? How much will this round of drinks come to? And what are the chances of winning the lottery? Twice? Learn how to do complex maths with nothing but the back of an envelope, a pencil and some good old-fashioned brain power. Doing mathematics without a calculator seems like an unnecessary feat in the twenty-first century. These clever little electronic devices have helped to take away the drudgery of arithmetic, and given all of us the power to perform in a few seconds what might previously have taken hours to work out. But much of the time, we don't need the exact answer with its endless decimal points - we just need to know whether something is in the right ballpark. Rob Eastaway's clever mathematical techniques do exactly that, as he takes an entertaining look at how to figure without a calculator. From spotting misleading statistics in the news and bad deals, to estimating how long you'll be standing in that slowly crawling queue, this book is packed with amusing anecdotes and handy back-of-the-envelope calculations for every situation. Most importantly, this book is a timely and welcome reminder that sometimes our own brain is the best tool we have to deal with numbers.

Maths on the Back of an Envelope

With a foreword by Tim Rice, this book will change the way you see the world. Why is it better to buy a lottery ticket on a Friday? Why are showers always too hot or too cold? And what's the connection between a rugby player taking a conversion and a tourist trying to get the best photograph of Nelson's Column? These and many other fascinating questions are answered in this entertaining and highly informative book, which is ideal for anyone wanting to remind themselves – or discover for the first time – that maths is relevant to almost everything we do. Dating, cooking, travelling by car, gambling and even life-saving techniques have links with intriguing mathematical problems, as you will find explained here. Whether you have a PhD in astrophysics or haven't touched a maths problem since your school days, this book will give you a fresh understanding of the world around you.

The Hidden Maths of Everyday Life

Why Do Buses Come in Threes?

‘Another terrific book by Rob Eastaway’ SIMON SINGH ‘A delightfully accessible guide to how to play with numbers’ HANNAH FRY

Maths on the Back of an Envelope: Clever ways to (roughly) calculate anything

"With plenty of ideas you'll want to test out for yourself, this engaging and refreshing look at mathematics is for everyone. If you already like maths, you'll discover plenty of new surprises. And if you've never picked up a maths book in your life, this one will change your view of the subject forever."--Jacket.

surprisingly interesting everyday maths

How many socks make a pair?

Clever Ways to  Calculate Anything

How many socks make a pair? The answer is not always two. And behind this question lies a world of maths that can be surprising, amusing and even beautiful. Using playing cards, a newspaper, the back of an envelope, a Sudoku, some pennies and of course a pair of socks, Rob Eastaway shows how maths can demonstrate its secret beauties in even the most mundane of everyday objects. If you already like maths you’ll discover plenty of new surprises. And if you’ve never picked up a maths book in your life, this one will change your view of the subject forever.

Surprisingly interesting everyday maths

How Many Socks Make a Pair?

DIV How many socks make a pair? The answer is not always two. And behind this question lies a world of maths that can be surprising, amusing and even beautiful. Using playing cards, a newspaper, the back of an envelope, a Sudoku, some pennies and of course a pair of socks, Rob Eastaway shows how maths can demonstrate its secret beauties in even the most mundane of everyday objects. If you already like maths youÕll discover plenty of new surprises. And if youÕve never picked up a maths book in your life, this one will change your view of the subject forever. /div

Surprisingly Interesting Maths

Every great creation starts with an idea, but where does that special spark come from? What do you do when your mind goes blank? And how do you recognise the ideas that are worth taking further?

Tips and Techniques to Help You Think Creatively

Any Ideas?

Mike Askew

In a new edition, fully revised and updated to reflect key new curriculum topics and methods, 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.

Maths for Mums and Dads

Come eseguire a mente un’operazione che sembra impossibile? Come stupire gli amici con magici giochi di carte? C’è un segreto per risolvere velocemente un Sudoku? E per leggere il pensiero? Occorre fare i conti con la matematica! La matematica è quella cosa, dice Eastaway, che «spesso ci fa sentire stupidi e anche un po’ arrabbiati», ma grazie a questo libro, che ne mette in mostra l’aspetto giocoso, diventerà semplice e divertente, persino sorprendente: riusciremo così a trasformare la nostra frustrazione e il nostro senso di inadeguatezza in coraggio intellettuale e voglia di metterci alla prova. Eastaway lancia una sfida a tutti coloro che non si sentono portati per la matematica, una sfida che davvero vale la pena di raccogliere, per scoprire quanto interessante, creativo e stimolante può essere il mondo dei numeri e della logica.

Le sorprese della matematica nella vita di tutti i giorni

Quanti calzini fanno un paio?

'Here are some great ideas here to help parents switch their kids on to maths. Just getting children to appreciate that maths is part of everyday life can have a massive positive impact – and this book shows you how!' Mike Ellicock, Chief Executive, National Numeracy 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.

101 Fun Ways to Play with Maths

Maths on the Go

Struggling to remember all that information they're stuffing you with at school? Want to impress your friends with amazing memory feats? Can't keep on top of all your online passwords? Then you need this book! Packed with cool tricks and fun exercises, How To Remember Almost Everything, Ever will help you hone your memory to super-hero standards. Learn how imagining a walk down your street can help you remember a shopping list, how you can memorise a phone number by picturing the digits as letters, and how music, rhymes and even smells can help. Find out what your brain has in common with a computer, how spies committed things to memory, and how to flummox your parents with memory tricks. How to Remember Almost Everything, Ever is the perfect book for anyone who wants to improve their study skills and make their memory the best it can be.

Tips, tricks and fun to turbo-charge your memory

How to Remember (Almost) Everything, Ever!

Jeremy Wyndham

In this sequel to Why Do Buses Come in Threes?, you will find that many intriguing everyday questions have mathematical answers. Discover the astonishing 37% rule for blind dates, the avoidance tactics of the gentleman's urinal, and some extraordinary scams that have been devised to get rich quick. Also included are the origins of the seven-day week and the seven-note scale, an explanation of why underdogs win, clever techniques for detecting fraud, and the reason why epidemics sweep across a nation and disappear just as quickly. Whatever your mathematical ability, this fun, thought-provoking book will illuminate the ways in which math underlies so much in our everyday lives.

More Hidden Mathematics of Everyday Life

How Long Is a Piece of String?

Why do weather forecasters get it wrong? What are the best tactics for playing"Who Wants to be a Millionaire?"and"The Weakest Link"? And what is the link between a tin of baked beans and a men's urinal? These and many other questions are answered in this book. It is for anyone wanting to remind themselves - or discover for the first time - that maths is relevant to almost everything we do. Dating, cooking, travelling by car, gambling and ranking sportsmen all have links with intriguing mathematical problems that are explained in this book. It reveals the secrets behind some of the best con tricks and the hidden workings of the taxi meter, and explains how epidemics start and stop.

Rob Eastaway

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