Maths On The Back Of An Envelope: Clever Ways To (roughly) Calculate Anything by Rob EastawayMaths On The Back Of An Envelope: Clever Ways To (roughly) Calculate Anything by Rob Eastaway

Maths On The Back Of An Envelope: Clever Ways To (roughly) Calculate Anything

byRob Eastaway

Hardcover | December 3, 2019

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'Another terrific book by Rob Eastaway' SIMON SINGH'A delightfully accessible guide to how to play with numbers' HANNAH FRYHow 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.
Rob Eastaway has written or co-written twelve books, including the bestselling Why Do Buses Come in Threes? and Maths for Mums and Dads as well as What Is a Googly?, the acclaimed beginner's guide to cricket. He is the Director of Maths Inspiration, a national programme of theatre-based lecture shows for 15-17 year olds that has reache...
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Title:Maths On The Back Of An Envelope: Clever Ways To (roughly) Calculate AnythingFormat:HardcoverDimensions:208 pagesPublished:December 3, 2019Publisher:HARPERCOLLINS PUBLISHERSLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0008324581

ISBN - 13:9780008324582

Reviews

Editorial Reviews

'A delightfully accessible guide to how to play with numbers' - Dr Hannah Fry, author of Hello World and The Mathematics of Love'Put aside those calculators and computers, and find a pen and piece of paper! In a collection of riveting tips and examples, Eastaway shows us amazing short-cuts to get rough answers to important questions. I still find it remarkable that 16% of 25 is exactly the same as 25% of 16!' - Professor Sir David Spiegelhalter, author of The Art of Statistics'Another terrific book by Rob Eastaway' - Simon Singh'Packed with fun examples and fresh ideas. I thought I was on top of this subject, but I learned a lot' - Tim Harford