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All about flooble fun stuff Get a free chatterbox ... Avatars perplexus dot info Home Welcome to perplexus.info , flooble's perplexing puzzle portal. Here, we collect all sorts of puzzles, from simple logic questions and word tricks to in-depth math problems like probability and geometry. Click around and see if your brain is up to the task! If you're new here, make sure you sign up so that you can leave comments and submit your own problems! Categories All Problem Categories Latest: Self-Referential Numbers (in Numbers A nine digit number has the property where the first digit equals the number of zeros and ones used in the number, the second digit equals the number of ones and twos used in the number, the third digit equals the number of twos and threes used in the number, etc. through the ninth digit equals the number of eights and nines used in the number. What could the number be? A ten digit number has a similar property to the nine digit number. The first digit equals the number of zeros and ones used in the number, the second digit equals the number of ones and twos used in the number, etc. through the ninth digit. And also, the tenth digit equals the number of zeros and nines used in the number. What could this number be? No Solution Yet, 4 Comments

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14. Galileo Educational Network Association When we talk about math puzzles we are not talking about toys. Rather we are talking about problems which can be pondered over in an effort to solve or http://www.galileo.org/math/puzzles.html

Recommended Links Logic Mazes Online Strategy Games Fractal Creator Grade 12 Challenges Search Galileo Search WWW Math Problems To be an automaton - memorize procedures. To be a thinker - gnaw on a math problem. Babushka Wisdom Lower Grades Babushka Squares McGuire the Gathering Barbanegra the Pirate Mini Sudoku ... Wolf Nim Traditional problems used in the mathematics classroom are monotonously predictable: There is one and only one correct answer. This is bogus!!! Real mathematical problems may have no solution, several solutions, or an infinite number of solutions. There is excitement in the unknown. Babushka Wisdom Higher Grades Babushka Squares King Arthur's Standard Bearer Bone Crack Divination Lights On ... Karate Bricks Who are we adult Babushkas to pose all the problems? Posing good problems and exploring beyond the range of set problems is intellectual entrepreneurship at its best. Babushka Wisdom These problems are prepared by Gordon Hamilton of Galileo, Ted Lewis of The Pacific Institute for The Mathematical Science, and Indy Lagu, Chair of the Faculty of Science and Technology - Mathematics, Physics, and Engineering at Mount Royal College. Student and teacher contributions are welcome: Email your best original problems to Gord!

15. BCIT ~ Mathematics | Entertainment Famous mathematical problems, puzzles, facts, games and trivia. http://www.math.bcit.ca/entertainment/

Math Home About BCIT Math Faculty List Math Courses ... Mathematics for Technology Software Mathematical Entertainment Here are some famous mathematical problems from throughout history as well as some mathematical puzzles, facts, games and trivia. Enjoy! Pinball and Pascal's Triangle The Travelling Salesman Problem Finding Areas Using the Monte Carlo Method Important Numbers ... Privacy Statement 3700 Willingdon Avenue, Burnaby, British Columbia, Canada, V5G 3H2, Phone: 604-434-5734 This page is maintained by Andrew_McConnell@bcit.ca and was last updated Sat Jul 12 08:07:40 2003

16. Math Sites math puzzles and math Brain Teasers Sites! math Web Quest Sites! math Humor! Games, puzzles, problems, Brain Teasers More Fun http://cte.jhu.edu/techacademy/web/2000/heal/siteslist.htm

Games Clever Games for Clever People Interactive Fractals Site Java Math Games Mankala ... Quizville - Online Math Skills Practice Games More Fun Curious and Useful Math Einstein's Origami Math Cats Math Humor ... Paul's Page of Pi Puzzles AIMS Puzzle Corner Brain Teasers Cut the Knot - Interactive Puzzles Diamond 16 Puzzle ... Mathematics Puzzles - Thinks.com Nick's Mathematical Puzzles Puzzle Solvers at Cryptic Manor Puzzles and Problems Tim's Interactive Puzzle Solution Center ... The Ultimate Puzzle Site Problems Enquiring Into Number Things Escot Problem of the Week Figure This - Math Challenges for Families Get Smarter Org - Math Quiz ... Math Forum Problems of the Week (elementary through calculus) OleMiss Problems of the Week Olympiad Math Madness Problem of the Week Shack's Math Problems ... Word Problems for Kids Algebra Activities Interactivate Algebra Activities Investigating Bridges - Dan MacLeod Roller Coasters and Slope - Joanne Clarke Similar Triangles Investigation - Chuck Cooper

17. Number Puzzles 200 math Number puzzles, including arithmetic, rounding, fractions, decimals, algebra, multiplication, ratios, word problems, and order of operations. http://www.edhelper.com/number_puzzle.htm

Return to edHelper.com Return to math Number Puzzles Basic Math Place Value Addition Subtraction Multiplication ... Arithmetic to Algebra Math puzzles: Math Box Math Sequences Number Word Searches Missing Digits ... Critical Thinking Puzzles Number Basics Read the Number Word (up to millions) Write the Place Value (up to Thousands) Write the Place Value (up to millions) Tens and Ones ... Hundreds, Tens, and Ones Counting Money Math Number Puzzles Counting Money (Number Puzzle) Money Word Calculations (Number Puzzle) Combined Counting and Money Word Calculations (Number Puzzle) Rounding Round Whole Numbers to nearest tens, hundreds, or thousands. Small to Very Large Numbers (Round to Largest Place Value) Round Decimals to the Nearest Whole Number Rounding Decimals (Mixed) ... Round Decimal to the Underlined Place Value Number Theory Greatest Common Factor and Least Common Multiple Addition Numbers to 6 (Top Down) Numbers to 6 (Across) Easy Column Addition (Numbers to 6) Numbers 7 to 19 (Top Down) ... Addition (Large Numbers) Subtraction Numbers to 6 (Top Down) Numbers to 6 (Across) Numbers 7 to 19 (Top Down) Numbers 7 to 19 (Across) ... Subtraction (Large Numbers) Multiplication Multiplication Basics (Number 2) Multiplication Basics (Number 3) Multiplication Basics (Number 4) Multiplication Basics (Number 5) ... Multiplication (Across, Numbers 2-12)

18. Math Forum: K-12 Problems, Puzzles, Tips & Tricks Sets of math problems and puzzles, and computation tips and tricks to speed up your calculations. http://mathforum.org/k12/mathtips/

Student Center Teachers' Place Calculation Tips Problems ... Puzzles See also the Math Forum's Internet Mathematics Library list of math problems and puzzles on the Internet, and our Teacher2Teacher FAQ: Tricks for Learning Math. Download an archive for local viewing of the following tips and tricks: Mac or Windows Calculation Tips Doing Math in Your Head Beat the Calculator - BEATCALC! More than 500 mental calculation tricks from the BEATCALC mailing list Divisibility Rules for numbers 3-13 Why do these rules work? Multiplication Tips Hints for multiplying by 5, 9, and 11 Math Problems Russian Math Olympiads St. Petersburg, Russia 20 problems from the Palace of Youth Creativity Vologda, Russia 28 problems for grades 5-11 MathPro Online MathPro Online Reference to Mathematical Problems Math Puzzles rec.puzzles rec.puzzles An archive of questions and answers that may be of interest to puzzle enthusiasts Number Puzzles Math Line Puzzles Exploring Facts, Uncovering Connections Critical Thinking Puzzles Brain teasers from Michael DiSpezio's book Home The Math Library Quick Reference Search ... Help http://mathforum.org/

19. Problems, Word Games, Puzzles, Brainteasers, And Wordplay Solve math problems, brainteasers, word games and riddles. Featuring a selection of free puzzles to help develop problem solving and lateral thinking skills. http://www.theproblemsite.com/

Home Problem Solving Contact About ... The Problem Site Welcome to The Problem Site , a special problem solving site for both students and adults. This site hosts 'Problem Of the Week' and 'Problem of the Month' pages, maintained by educators, mathemeticians, puzzle enthusiasts, and others who care about students' ability to think critically. Please visit any of the pages listed below. You can stop in just to get the problems, or you can compete against others around the world by submitting solutions. To submit solutions, you must have cookies enabled in your browser. Have fun! Public Problem Pages At The Problem Site The Maine Page The Maine Page is designed to help high school students from the state of Maine prepare for the Maine Association of Math Leagues math competitions.( visit this page Doug's Brain Food Brainteasers, riddles, and word games can be found here. A well rounded knowledge of many subject areas will help you do well with this hodgepodge of puzzles! ( visit this page MathHS: Graeme's Problem of the Month This problem page contains high school level math problems updated monthly.( visit this page Mr. T's Calculus Problems

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Browse and Search the Library Home Resource Types Ed. Materials : Problems/Puzzles Library Home Search Full Table of Contents Suggest a Link ... Library Help Subcategories (see also All Sites in this category Word Problems Selected K12 Problem and Puzzle Sites By Topic By Level Arithmetic Elementary Algebra PreK-2 ... Discrete Math There are so many items in this category that we recommend using the keyword search and math topic or grade level menus to narrow down your results. See also our section of Daily/Weekly/Monthly Challenges All Sites - 1472 items found, showing 1 to 50 $1000 High School Calculus Student Award (Math Chat) - Frank Morgan, MAA Online Solution to the challenge: Justin Smith calls 5939 a "right" prime because it remains prime after dropping any number of digits from the right: 5939, 593, 59, and 5 are all prime. How many right primes are there less than 1000? Is there a largest right ...more>> $1000 Math Chat Book Quest (Math Chat) - Frank Morgan, MAA Online Solution to the challenge: On a beach in Oregon, at a certain moment, the very last bit of the Sun disappears below the horizon. The question is: Can I make that last bit of Sun reappear by jumping up quickly to my full height, or perhaps by very quickly ...more>> 100 Percent! - Energy Conservation Enhancement Project

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