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Les énigmes mathématiques de Nick

Les énigmes mathématiques de Nick
Welcome to my selection of mathematical puzzles. What's new? See puzzle 160. The math puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution. They range over geometry, probability, number theory, algebra, calculus, trigonometry, and logic. All require a certain ingenuity, but usually only pre-college math. Explaining how an answer is arrived at is more important than the answer itself. Each puzzle is assigned a level of difficulty of between one and four stars, with four being the most difficult. The source for each problem is given at the bottom of the solution page. I welcome feedback of any kind. Some brief biographical information. Nick Back to top Related:  Défis, jeux, humourMathematics

La Gazette - La Gazette Tous les mois, des problèmes en tou... | Les jeux mathématiques de Diophante, plus de 1000 problèmes Transum: Maths Puzzles There is a great amount of satisfaction that can be obtained from solving a mathematical puzzle. There is a range of puzzles on this page, all with a mathematical connection, that are just waiting to be solved. You can earn Transum Trophies for the puzzles you solve. How Many Squares? 2 How many different sets of four dots can be joined to form a square? Do you have any comments?

Math puzzles These puzzles do not require any mathematical knowledge, just logical reasoning. Check, how smart you are. If you cannot solve them, take it easy. Almost all puzzles were told to us by a computer/math genius Vlad Mitlin . Please email us your comments and new puzzles: cherk@math.utah.edu. Andrej and Elena 1. Click here 2. A group of four people has to cross a bridge. Solution: Click here To see the animated solution, you need a browser which supports JAVA 3. The distance between the towns A and B is 1000 miles. Generalize the strategy for an arbitrary amount of apples. More problems from Vlad Mitlin Party! There is a group of people at a party. Digits Show that for any natural n, at least one of two numbers, n or n+1, can be represented in the following form: k + S(k) for a certain k, where S(k) is the sum of all digits in k. Zen problem A Buddhist monk got an errand from his teacher: to meditate for exactly 45 minutes. Lucky tickets Divisor Distances King Checkers Four numbers x^N + y^N = z^N

Mysterious number 6174 March 2006 Anyone can uncover the mystery The number 6174 is a really mysterious number. At first glance, it might not seem so obvious. But as we are about to see, anyone who can subtract can uncover the mystery that makes 6174 so special. Kaprekar's operation In 1949 the mathematician D. It is a simple operation, but Kaprekar discovered it led to a surprising result. When we reach 6174 the operation repeats itself, returning 6174 every time. We reached 6174 again! A very mysterious number... When we started with 2005 the process reached 6174 in seven steps, and for 1789 in three steps. Only 6174? The digits of any four digit number can be arranged into a maximum number by putting the digits in descending order, and a minimum number by putting them in ascending order. 9 ≥ a ≥ b ≥ c ≥ d ≥ 0 and a, b, c, d are not all the same digit, the maximum number is abcd and the minimum is dcba. which gives the relations for those numbers where a>b>c>d. For three digit numbers the same phenomenon occurs. and

Auteur Récréomath Charles-É. Jean a oeuvré en éducation pendant plusieurs années. Il a été notamment enseignant et chef de groupe en mathématiques dans une polyvalente, conseiller pédagogique en mathématiques, directeur adjoint d’école, directeur des services éducatifs au ministère de l’Éducation. Il a aussi été directeur des services éducatifs et directeur général adjoint aux commissions scolaires du Bas-St-Laurent et de La Neigette. En 1973, il a conçu un modèle d’enseignement en mathématiques à l’intention des élèves du secondaire. En 1982-1983, l’auteur a été responsable national de l’implantation des nouveaux programmes de mathématiques du secondaire. Il a été notamment responsable des communications, puis président du Salon du livre de Rimouski pendant trois ans. L’auteur qui est bachelier de l’UQAR en mathématiques et de l’Université Laval en pédagogie est un passionné des divertissements intellectuels. Voici un aperçu de sa production : 1. 1. 2. 3. 4. L’américain William L. 5. 6. 7. 8. 9. 10.

BrainBashers : Puzzles and Brain Teasers Mathematical Puzzles Interactive Mathematics Miscellany and Puzzles Excellent. Ken Duisenberg's Puzzle of the Week A good archive to dip into. MathPuzzle.com The webmaster, Ed Pegg Jr, is a twenty year member of the National Puzzler's League, and frequently contributes to the New York Times crossword, Games, and National Public Radio's Sunday Puzzler. The MathSoft Math Puzzle Page Mathematical puzzles featured here have been previously published in Allan Gottlieb's column in the Tech Review. Nick's Mathematical Puzzles The puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution. The Null Set - Mathematical Puzzles A good selection of puzzles, by Guy Kindler at Tel Aviv University, graded from simple to tough - but most requiring some undergraduate maths knowledge. Number and Word Puzzles 44 monthly puzzles provide entertainment and education for all ages on this Australian website. The Puzzlet Page Enjoy mental workouts? The Puzzling World of Barry R.

100 Incredible Open Lectures for Math Geeks While many math geeks out there may have been teased for their love of numbers, it’s math that makes the world go round, defining everything from the economy to how the universe itself operates. You can indulge your love of mathematics in these great lectures and lecture series, which are a great diversion for those diligently working toward traditional or online master’s degree programs in mathematics. Some are meant to review the basics and others will keep you on the cutting edge of what renowned researchers are doing in the field, but all will help you expand your knowledge and spend a few hours enjoying a topic you love. Basic Math These lectures cover some pretty basic mathematical issues that can be a great review or help younger math lovers get a handle on a subject. Metric Conversions: This lecture will teach you the formulas you need to switch between metric and English units. Calculus Algebra In these lectures you’ll learn about a wide range of topics in algebra. Geometry Physics

Paroles et blagues de matheux Paroles et blagues de matheux Quelques citations ... "En essayant continuellement, on finit par réussir. Devise des Shadocks (C'est pourquoi ils tentent sans relâche de pomper le cosmogol 999 des Gibis...) "Tout le monde veut vivre au sommet de la montagne, sans soupçonner que le vrai bonheur est dans la manière de gravir la pente" Gabriel Garcia Marquez "Le point rouge sur son front décuple sa beauté comme le zéro posé à la fin d'un nombre..." (Poète indien). "L'enseignement est le meilleur moyen d'apprendre, j'en suis toujours convaincu; en communiquant nos connaissances nous continuons à découvrir et à apprendre. Erno Rubik "Le plus court chemin d'un point à un autre est la ligne droite, à condition qu'ils soient bien l'un en face de l'autre." Pierre Dac "On sourit aux distractions des mathématiciens. Sacha Guitry "Il n'y a pas de problème, il n'y a que des professeurs." Jacques Prévert Goethe "Les hommes sont comme les chiffres, ils n'acquièrent de valeur que par leur position." Boileau Philolaos

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