Maths 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

Rob Eastaway

208 pages first pub 2019 (editions) user-added

nonfiction mathematics science informative lighthearted fast-paced
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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?Learn how to tackle tricky maths problems with nothing but the back of an envelope, a pencil and some good old...

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