Author: Peter Grabarchuk
Publisher: Courier Dover Publications
ISBN: 0486810046
Category : Games & Activities
Languages : en
Pages : 101
Book Description
Multiplying my age by 6 then subtracting 6 produces the same result as subtracting 7 from my age then multiplying by 7. How old am I? On my broken calculator with keys + - ÷ x =, the only functional number is 7. How can I get 34 to appear in the readout? A country mints four denominations of coins, in whole numbers of cents. It takes four of these coins to make 21¢, or 24¢, or 25¢, or 26¢. What are the denominations of the coins? These and almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers. A unique puzzle project, it unites the efforts of a dozen authors, including software engineer Andrea Gilbert and Bram Cohen, author of the P2P BitTorrent protocol. Seventeen different types of challenges include 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimko, sudoku, visual puzzles, weightings, and word puzzles. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5. Average difficulty level is about 3 stars, promising puzzle enthusiasts many entrancing hours of solving and enjoyment.
Puzzle Box
Author: Andy Parr
Publisher: Courier Dover Publications
ISBN: 0486813487
Category : Games & Activities
Languages : en
Pages : 99
Book Description
Treasury of 300 puzzles features 3D and chess puzzles, connections, dissections, foldings, geometrical and number puzzles, logic problems, matchstick puzzles, mazes, moving pieces, put-togethers, strimkos, sudoku, and visual and word puzzles.
Publisher: Courier Dover Publications
ISBN: 0486813487
Category : Games & Activities
Languages : en
Pages : 99
Book Description
Treasury of 300 puzzles features 3D and chess puzzles, connections, dissections, foldings, geometrical and number puzzles, logic problems, matchstick puzzles, mazes, moving pieces, put-togethers, strimkos, sudoku, and visual and word puzzles.
Colossal Book of Mathematics
Author: Martin Gardner
Publisher: W. W. Norton & Company
ISBN: 9780393020236
Category : Mathematics
Languages : en
Pages : 748
Book Description
No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 320 line drawings.
Publisher: W. W. Norton & Company
ISBN: 9780393020236
Category : Mathematics
Languages : en
Pages : 748
Book Description
No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 320 line drawings.
Book of Curious and Interesting Puzzles
Author: David Wells
Publisher: Dover Publications
ISBN: 9780486443416
Category : Mathematical recreations
Languages : en
Pages : 0
Book Description
"Of immense interest to those who enjoy recreational maths and puzzles . . . even the most hardened puzzler will find something new." -- Mathematical Gazette Puzzles are as old as history itself, following an arc like that of technology: centuries of slow progress, followed by rapid expansion in the 1800s, and an explosion of activity in the twentieth century. This collection by bestselling author David Wells, a Cambridge math scholar and teacher, follows that pattern. Its first part is devoted to puzzles from ancient Egypt and Babylon and subsequent sources, featuring those devised by Lewis Carroll, Eduard Lucas, Sam Loyd, and other master puzzlers of the Victorian era. The second part demonstrates the tremendous variety of twentieth-century puzzles. More than 560 puzzles are included, from the "mind sharpeners" of a medieval monk to the eighteenth-century Ladies' Diary, the Hindu Bhakshali manuscript, and riddles and popular rhymes. None requires any mathematics beyond the most elementary algebra and geometry -- and few require even that. Complete answers appear at the end.
Publisher: Dover Publications
ISBN: 9780486443416
Category : Mathematical recreations
Languages : en
Pages : 0
Book Description
"Of immense interest to those who enjoy recreational maths and puzzles . . . even the most hardened puzzler will find something new." -- Mathematical Gazette Puzzles are as old as history itself, following an arc like that of technology: centuries of slow progress, followed by rapid expansion in the 1800s, and an explosion of activity in the twentieth century. This collection by bestselling author David Wells, a Cambridge math scholar and teacher, follows that pattern. Its first part is devoted to puzzles from ancient Egypt and Babylon and subsequent sources, featuring those devised by Lewis Carroll, Eduard Lucas, Sam Loyd, and other master puzzlers of the Victorian era. The second part demonstrates the tremendous variety of twentieth-century puzzles. More than 560 puzzles are included, from the "mind sharpeners" of a medieval monk to the eighteenth-century Ladies' Diary, the Hindu Bhakshali manuscript, and riddles and popular rhymes. None requires any mathematics beyond the most elementary algebra and geometry -- and few require even that. Complete answers appear at the end.
My Best Mathematical and Logic Puzzles
Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 0486320324
Category : Games & Activities
Languages : en
Pages : 100
Book Description
The noted expert selects 70 of his favorite "short" puzzles, including such mind-bogglers as The Returning Explorer, The Mutilated Chessboard, Scrambled Box Tops, and dozens more involving logic and basic math. Solutions included.
Publisher: Courier Corporation
ISBN: 0486320324
Category : Games & Activities
Languages : en
Pages : 100
Book Description
The noted expert selects 70 of his favorite "short" puzzles, including such mind-bogglers as The Returning Explorer, The Mutilated Chessboard, Scrambled Box Tops, and dozens more involving logic and basic math. Solutions included.
Puzzle Boxes Volume 1
Author: Pauline Malkoun
Publisher:
ISBN: 9781922641298
Category : Juvenile Nonfiction
Languages : en
Pages : 50
Book Description
Not only are word puzzles fun but they are great for building literacy skills. They can help develop word recognition, pattern recognition skills, improve spelling, expand and revise vocabulary Puzzle Boxes Volume 1 contains 30 9 letter puzzle boxes. Your challenge is to work out the 9 letter word and as many more words as you can. Can you solve every puzzle box?
Publisher:
ISBN: 9781922641298
Category : Juvenile Nonfiction
Languages : en
Pages : 50
Book Description
Not only are word puzzles fun but they are great for building literacy skills. They can help develop word recognition, pattern recognition skills, improve spelling, expand and revise vocabulary Puzzle Boxes Volume 1 contains 30 9 letter puzzle boxes. Your challenge is to work out the 9 letter word and as many more words as you can. Can you solve every puzzle box?
100 Numerical Games
Author: Pierre Berloquin
Publisher: Courier Dover Publications
ISBN: 0486789586
Category : Mathematics
Languages : en
Pages : 164
Book Description
Stimulating and delightful, this collection of puzzles features original and classic brainteasers. The author, a puzzle columnist forLe Monde, specially selected these mind-benders for the widest possible audience, ensuring that they're neither too hard for those without a math background nor too easy for the mathematically adept. Includes solutions.
Publisher: Courier Dover Publications
ISBN: 0486789586
Category : Mathematics
Languages : en
Pages : 164
Book Description
Stimulating and delightful, this collection of puzzles features original and classic brainteasers. The author, a puzzle columnist forLe Monde, specially selected these mind-benders for the widest possible audience, ensuring that they're neither too hard for those without a math background nor too easy for the mathematically adept. Includes solutions.
The Secret of the Puzzle Box
Author: Penny Warner
Publisher: Darby Creek ™
ISBN: 1512419052
Category : Juvenile Fiction
Languages : en
Pages : 157
Book Description
The Code Busters are excited for their class field trip to Angel Island, known as the Ellis Island of the West. One of Mika's ancestors passed through the island's immigration station in the early twentieth century, and Mika thinks he may have left behind some secret messages . . . plus a very special box. But as the Code Busters search for hints from the past, they get caught up in an even bigger secret. Can you crack the code? Test your brain with the Code Busters to see if you have the right stuff to be an ace detective. Answers are in the back, in case you get stuck.
Publisher: Darby Creek ™
ISBN: 1512419052
Category : Juvenile Fiction
Languages : en
Pages : 157
Book Description
The Code Busters are excited for their class field trip to Angel Island, known as the Ellis Island of the West. One of Mika's ancestors passed through the island's immigration station in the early twentieth century, and Mika thinks he may have left behind some secret messages . . . plus a very special box. But as the Code Busters search for hints from the past, they get caught up in an even bigger secret. Can you crack the code? Test your brain with the Code Busters to see if you have the right stuff to be an ace detective. Answers are in the back, in case you get stuck.