{"product_id":"books-maths-on-the-back-of-an-envelope-by-rob-eastaway","title":"Maths on the Back of an Envelope","description":"\u003cp\u003e\n            \u003cstrong\u003e‘Another terrific book by Rob Eastaway’ SIMON SINGH\u003c\/strong\u003e\n          \u003c\/p\u003e\n          \u003cp\u003e\n            \u003cstrong\u003e‘A delightfully accessible guide to how to play with numbers’ HANNAH FRY\u003c\/strong\u003e\n          \u003c\/p\u003e\n          \u003cp\u003eHow many cats are there in the world?\u003c\/p\u003e\n          \u003cp\u003eWhat's the chance of winning the lottery twice?\u003c\/p\u003e\n          \u003cp\u003eAnd just how long does it take to count to a million?\u003c\/p\u003e\n          \u003cp\u003eLearn how to tackle tricky maths problems with nothing but the back of an envelope, a pencil and some good old-fashioned brain power.\u003c\/p\u003e\n          \u003cp\u003eJoin 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, \u003cem\u003eMaths on the Back of an Envelope\u003c\/em\u003e 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.\u003c\/p\u003e","brand":"World of Books ","offers":[{"title":"Default Title","offer_id":53772059836689,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9780008444495.jpg?v=1783971672","url":"https:\/\/www.worldofbooks.com\/products\/books-maths-on-the-back-of-an-envelope-by-rob-eastaway","provider":"World of Books ","version":"1.0","type":"link"}