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Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything by Rob Eastaway: Book of the Week


By Spalding Today Columnist


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?

Maths on the Back of an Envelope. Bookmark in Spalding's Book of the Week.
Maths on the Back of an Envelope. Bookmark in Spalding's Book of the Week.

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.

Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything by Rob Eastaway (RRP £9.99) is available in Bookmark in The Crescent, Spalding, at £7.99. There's a further 20% discount with the voucher in this week's Spalding Guardian (on sale October 10-16).



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