'Another terrific book by Rob Eastaway' SIMON SINGH

'A delightfully accessible guide to how to play with numbers' HANNAH FRY

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-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.

• We started tracking this book on November 1, 2020.
• This book was $11.99 when we started tracking it.
• The price of this book has changed 18 times in the past 1,487 days.
• The current price of this book is $9.49 last checked 19 hours ago.
• This lowest price this book has been offered at in the past year is $7.99.
• The lowest price to date was $7.99 last reached on September 5, 2024.
• This book has been $7.99 2 times since we started tracking it.
• The highest price to date was $12.99 last reached on March 1, 2024.
• This book has been $12.99 3 times since we started tracking it.

• Science & Math

• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 196 Pages
• File Size: 2,483 KB