{"title":"Sudoku and number puzzles Books","description":"","products":[{"product_id":"coffee-break-su-doku-book-3-200-challenging-su-doku-puzzles-collins-su-doku-9780008343903","title":"Coffee Break Su Doku Book 3 200 challenging Su","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eQuiz your family at home with crosswords, puzzles and games.           \u003cp\u003eStretch your powers of logical deduction with these 200 new Su Doku puzzles, in easy, medium and difficult categories.\u003c\/p\u003e","brand":"HarperCollins Publishers","offers":[{"title":"Default Title","offer_id":47832463114583,"sku":"9780008343903","price":7.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780008343903.jpg?v=1710333527"},{"product_id":"big-book-of-su-doku-9-9780008469924","title":"Big Book of Su Doku 9","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eKeep your brain busy at home with everyday puzzles.A bumper collection of easy, medium and difficult Su Doku puzzles to test your mental dexterity, powers of logic and deduction. You will find 100 easy, 100 medium and 100 hard puzzles in this collection so you can gauge your progression through the difficulty levels.You will find the solutions at the back of the book.Keep your mind sharp and test your powers of deductive reasoning. Ideal for whiling away the time while travelling, on holiday or relaxing at home.","brand":"HarperCollins Publishers","offers":[{"title":"Default Title","offer_id":48732094693719,"sku":"9780008469924","price":6.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780008469924.jpg?v=1719995134"},{"product_id":"guardian-news-and-media-ltd-guardian-book-of-kakuro-9780099499589","title":"Guardian News and Media Ltd Guardian Book of","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003e\u003cp\u003eWhen the \u003ci\u003eGuardian\u003c\/i\u003e relaunched their new Berliner sized paper this autumn, they chose Kakuro as one of their launch vehicles. Kakuro (called Kakro in Japan and Cross Sums in the USA) has become the new number puzzle phenomenon gathering millions of fans worldwide. Older than puzzle favourite Sudoku and played for many years in Japan, Kakuro is best described as a kind of mathematical crossword.\u003cbr\u003e\u003cbr\u003eLike Sudoku, Kakuro is played on grids of varying sizes. Each grid consists of blank and filled squares similar to a crossword puzzle and the object of Kakuro is to fill in each of the white squares with the numbers 1-9 so that each set of blanks adds up to the total to the left or above. The same number cannot be used more than once in each set. Some filled in squares have a diagonal slash across them with two numbers - one above and one below the diagonal. 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In 7th heaven when you complete them, you''ll 8 giving up on any of these - but those 9 by nines won''t complete themselves... \u003cbr\u003e\u003cbr\u003eGood luck!\u003c\/p\u003e","brand":"Penguin Books Ltd","offers":[{"title":"Default Title","offer_id":48732386099543,"sku":"9780140958355","price":9.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780140958355.jpg?v=1719996654"},{"product_id":"penguin-pocket-sudoku-9780141034928","title":"Penguin Pocket Sudoku","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eSudoku is a real cultural phenomenon: a French fad in the 1890s, a Japanese craze in the 1980s, it is peculiarly British obsession. This book contains 201 fiendish brainteasers, ranging from easy to mind-bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices. It's more than a game.","brand":"Penguin Books Ltd","offers":[{"title":"Default Title","offer_id":48732402352471,"sku":"9780141034928","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780141034928.jpg?v=1719996725"},{"product_id":"hidden-connections-and-double-meanings-a-mathematical-exploration-9780486824628","title":"Hidden Connections and Double Meanings a","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eLoaded with thought-provoking facts and surprises, this book explores mathematical topics by pointing out remarkable similarities and taking a fresh look at familiar items. You don''t have to be a mathematician to appreciate its approach, which focuses on insight and imagination rather than technique. Readers can relish the mystery, intrigue, and other pleasurable aspects of mathematics with these problems and puzzles, which include hints and solutions.","brand":"Dover Publications Inc.","offers":[{"title":"Default Title","offer_id":48733816521047,"sku":"9780486824628","price":10.44,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780486824628.jpg?v=1791462939"},{"product_id":"the-mail-on-sunday-super-sudoku-volume-3-9780600624653","title":"The Mail on Sunday Super Sudoku Volume 3","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eSupersize the world''s greatest number puzzle and you get Super Sudoku - the biggest and best test of even the most dedicated sudoku fan''s logic. From the pages of The Mail on Sunday, this new collection of the much-loved number puzzle is guaranteed to stretch your grey matter, with 150 demanding brainteasers that will keep you entertained for hours.","brand":"Octopus Publishing Group","offers":[{"title":"Default Title","offer_id":48735829393751,"sku":"9780600624653","price":8.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780600624653.jpg?v=1723810362"},{"product_id":"the-telegraph-killer-sudoku-1-9780600626497","title":"The Telegraph Killer Sudoku 1","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003ePrepare yourself to take on the challenge that is \u003ci\u003eTelegraph Killer Sudoku 1. \u003c\/i\u003eThe ultimate test of logic, these demanding puzzles will put your mind through its paces. 200 killer sudoku grids allow you to hone your puzzling skills on your commute, during your leisure time or whenever you have a spare minute!","brand":"Octopus Publishing Group","offers":[{"title":"Default Title","offer_id":48735829492055,"sku":"9780600626497","price":8.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780600626497.jpg?v=1723810362"},{"product_id":"the-telegraph-all-new-sudoku-puzzles-1-9780600629443","title":"The Telegraph All New Sudoku Puzzles 1","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eYou don''t need to be a maths expert to get hooked on sudoku, the nation''s favourite number challenge. Test your logic to the limit with a brand new compilation of 200 addictive grids.","brand":"Octopus Publishing Group","offers":[{"title":"Default Title","offer_id":48735830835543,"sku":"9780600629443","price":8.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/1739\/5799\/files\/9780600629443.jpg?v=1723810363"},{"product_id":"the-telegraph-all-new-sudoku-puzzles-6-9780600631149","title":"The Telegraph All New Sudoku Puzzles 6","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eThe object of sudoku is simple, the solution however, not so easy to come by. But you don''t need to be a maths expert to love sudoku - armed only with the numbers 1-9 and a good dose of logic, challenge yourself with a brand new collection of the nation''s favourite number puzzle.","brand":"Octopus Publishing Group","offers":[{"title":"Default Title","offer_id":48735833227607,"sku":"9780600631149","price":999.99,"currency_code":"GBP","in_stock":false}]},{"product_id":"the-telegraph-killer-sudoku-2-the-telegraph-puzzle-books-9780600633136","title":"The Telegraph Killer Sudoku 2 The Telegraph","description":"\u003ch2\u003eBook Synopsis\u003c\/h2\u003eThe ultimate test of logic, these challenging puzzles take sudoku to a whole new level. 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This book presents an array of estimation problems that range from devilishly simple to quite sophisticated and from real-world concerns to silly ones.\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eTrade Review\u003c\/h2\u003e\"Dr. Adam and his colleague Lawrence Weinstein, a professor of physics, offer a wide and often amusing assortment of Fermi flexes in a book that just caught my eye, Guesstimation: Solving the World's Problems on the Back of a Cocktail Napkin.\"--Natalie Angier, New York Times \"An important skill of great use ... is the ability to derive an approximate result from insufficient data. Guesstimation is a collection of [problems] gathered from everyday life and various fields. Working out questions ... is both entertaining and enlightening. It may also help foster your career ... because making correct guesses quickly establishes your reputation as an expert.\"--Stephan Mertens, Science \"This book is a stimulating collection that will help the reader to reach informed judgments and will be a useful source of inspiration for mathematics and physics teachers: my only concern is that if my students have read it before they arrive at university, I may have to find a new approach to my first day's teaching.\"--Tony Mann, Times Higher Education \"While few can hope to emulate the brilliance of a Nobel Prize winner like [Enrico] Fermi, coming up with pretty good guesstimates is a skill that can be taught. And that's the aim of Guesstimation. After a quick tutorial, the authors get down to business with a host of wide-ranging worked examples, from estimating the numbers of piano tuners in Los Angeles to figuring out the impact of deforestation on greenhouse gas levels. The results are sometimes surprising.\"--Robert Matthews, BBC Focus Magazine \"[Guesstimation is] a left-brain book that helps you approximate answers to the types of questions actually asked in some job interviews today.\"--Peter Coy, BusinessWeek \"[A] delightful account of mathematical approximation, which instills the beauty and power of the back-of-the-envelope calculation. The puzzles make addictive confidence builders by breaking down tricky questions into manageable parts. Never again will you take a newspaper figure at face value without feeling the need, and confidence, to guesstimate your own figure.\"--Matthew Killeya, New Scientist \"Guesstimation is both enlightening and entertaining. I recommend it to my fellow journalists both as a tool of our trade and as a mind stretcher.\"--Rony V. Diaz, Manila Times \"Any idea what fraction of land in the US is covered by either a roof or pavement? Known as a Fermi problem, this type of question requires the use of reasonable estimation, which is the focus of the book at hand. In the initial chapters, Weinstein and Adam briefly review good 'guesstimation' techniques involving numbers and explain why the use of the geometric mean is preferred over the arithmetic mean.\"--J. Johnson, Choice \"How many people in the world are picking their nose right now? Weinstein and Adam 'guesstimate' the answer to this problem and 79 others, covering chemistry, physics, biology and history. The book is a step-by-step guide to problem-solving using rough-and-ready maths, the kind done on the back of a cocktail napkin. And the authors have kindly left additional questions at the end to get readers started on their own problem-solving expedition.\"--Cosmos \"Physics educators can use this book as a guide to including the important skill of estimation in their courses. Students may find the power of estimation to be a valuable skill and will want to work their way through this book.\"--Arthur Eisenkrafr, American Journal of Physics \"A source of imaginative problems, this book would make a nice addition to a mathematics department library.\"--Diane Resek, Mathematics Teacher \"[I]t's quite obvious that the authors intend their book to be fun, nonthreatening, and user-friendly. There's very little not to like... [T]he book can be for everybody, 'higher-up professionals' who might know math but not physics, as well as students wrestling with 'word problems.' Teachers could very well recommend it to math majors and nonmajors alike, or even use it in the classroom, in some cases as supplementary reading for the course.\"--Marion Deutsche Cohen, Mathematical Intelligencer \"The cumulative effect of fairly simple paths to estimating solutions to a dizzying array of difficult problems is fascinating.\"--Ray Bert, Civil Engineering \"This book will be enjoyed by anyone with an interest in estimation, but is also targeted at those applying for jobs at companies like Google, where the kind of questions considered in the book are often used in the interview process.\"--Paul Taylor, Mathematics Today\u003cbr\u003e\u003cbr\u003e\u003ch2\u003eTable of Contents\u003c\/h2\u003eAcknowledgments xi  Preface xiii  Chapter 1: How to Solve Problems 1  Chapter 2: Dealing with Large Numbers 11  2.1 Scientific Notation 11  2.2 Accuracy 14  2.3 A Note on Units 16  2.4 Unit Conversion 17  Chapter 3: General Questions 19  3.1 One big family 21  3.2 Fore! 25  3.3 This is a fine pickle you've got us into, Patty 29  3.4 Throwing in the towel 31  3.5 Hey buddy, can you fill a dome? 35  3.6 A mole of cats 39  3.7 Massive MongaMillions 41  3.8 Tons of trash 43  3.9 Mt. 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