Wheelers Books
Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything

Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything (Hardback)

By Eastaway, Rob

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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.
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ISBN 9780008324582
Released NZ 2 Sep 2019
Publisher HarperCollins Publishers
Format Hardback
Alternate Format(s) View All (2 other possible title(s) available)
Availability
31 In stock at publisher; ships 6-12 working days

Full details for this title

ISBN-13 9780008324582
Stock Available
Status In stock at publisher; ships 6-12 working days
Publisher HarperCollins Publishers
Imprint HarperCollins Publishers Ltd
Released 2 Sep 2019
Publication Country United Kingdom United Kingdom
Format Hardback
Author(s) By Eastaway, Rob
Category Mathematics
Philosophy Of Mathematics
Mathematical Logic
Popular Science
Number of Pages 208
Dimensions Width: 135mm
Height: 204mm
Spine: 21mm
Dewey Code 510
Weight 280g
Interest Age General Audience
Reading Age General Audience
Library of Congress Mathematics - Popular works, Arithmetic - Popular works
NBS Text Popular Science
ONIX Text General/trade

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