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What is 4% of 75? Can you calculate 60 + 60 x 0 + 1? Which is bigger, an 18-inch pizza or two 12-inch pizzas? Join award-winning maths presenter Kyle D Evans on an entertaining tour of viral maths problems that have gone wild on social media in recent years. From the infamous 'Hannah's sweets' exam question to percentages 'life-hacks', viral maths problems seem to capture the public's imagination without fail. In Maths Tricks to Blow Your Mind, Kyle presents over 50 viral maths problems with background information, explanations and solutions to similar problems, all in a humorous, accessible and inclusive manner. Want to dazzle and delight your friends and family? This book shows you how!
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Veröffentlichungsjahr: 2021
Kyle D Evans is a maths teacher and award-winning maths presenter and entertainer. He regularly gives talks (and sings) about maths at schools, festivals and comedy clubs, and has performed everywhere from Edinburgh Fringe to London’s Science Museum.
@kyledevans
/borntosum
www.kyledevans.com
For Edwin and Juno, and all the emergency homeschooling parents.
First published in the United Kingdom in 2021 by Allen & Unwin, an imprint of Atlantic Books Ltd.
This paperback edition first published in 2022.
Copyright © Kyle D. Evans, 2021
The moral right of Kyle D. Evans to be identified as the author of this work has been asserted by him in accordance with the Copyright, Designs and Patents Act of 1988.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of both the copyright owner and the above publisher of this book.
Every effort has been made to trace or contact all copyright holders. The publishers will be pleased to make good any omissions or rectify any mistakes brought to their attention at the earliest opportunity.
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A CIP catalogue record for this book is available from the British Library.
Paperback ISBN: 978 1 83895 876 3E-book ISBN: 978 1 83895 367 6
Printed in Great Britain
Allen & UnwinAn imprint of Atlantic Books LtdOrmond House26–27 Boswell StreetLondonWC1N 3JZ
www.allenandunwin.com/uk
Introduction
1 THIS ONE COOL MATHS TRICK WILL BLOW YOUR MIND:
Maths tricks and ‘life hacks’
2 IT WAS DIFFERENT IN MY DAY:
Pre-internet viral maths
3 BACK TO SCHOOL:
Viral exam questions and classroom conundrums
4 OUT OF ORDER:
The trouble with BODMAS
5 BAD MATHS:
When Facebook meets algebra
6 GET INTO SHAPE:
Genius geometry problems
CONCLUSION:
A better viral maths future?
Solutions
