University of Cambridge
University of Cambridge: Nrich: Game Fifteen
Sharpen your problem solving and strategy skills playing this interactive game, Fifteen. The rules are simple but the game requires some thinking if you want to beat the computer. There is a "Printable Page," link if you want to print it...
ClassFlow
Class Flow: Brain Sizzlers
[Free Registration/Login Required] This flipchart contains one page logic puzzles adapted from the book Brain Sizzlers. These activities make great warm ups for math grades 6- algebra.
New York Times
New York Times: Crossword Puzzle: Weather
The New York Times Learning Network has developed interactive and printable crossword puzzles. The theme of this one is weather.
TED Talks
Ted: Ted Ed: Can You Solve the Temple Riddle?
Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an...
University of Cambridge
University of Cambridge: Nrich: Octa Space
At this one page web site see if you can solve this puzzle involving the edges of an octahedron. You will definitely need to use your problem solving and spatial reasoning skills for this!
University of Cambridge
University of Cambridge: Nrich: Adding Plus
On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Game: Tandem
Sharpen your problem solving and strategy skills playing this game. There is a "printable page" link if you want to print it out to help you work with the problem.
Ministry of Education and Employment of Spain
Red Escolar: El Crucigrama De Hipatia
In Spanish. Hypatia of Alejandria was a great mathematician that from an early age taught and investigated almost all branches of mathematics. To remember her solve the crossword puzzle involving problems of arithmetic, geometry and...
Ministerio de Educacion, Cultura y Deporte (Spain)
Centros5: Rincon Matematico 2000
Enjoy many of the math poems, puzzles and tricks in this math corner.
Other
Websudoku
A fun puzzler to get any mind thinking logically! Try many levels of puzzles using the following rules: "Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3x3...
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (026 030)
These math problems can help to prepare you for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (031 035)
These math problems can help to prepare you for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (036 040)
These math problems can help to prepare you for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (041 045)
These math problems can help to prepare you for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (046 050)
These math problems can help to prepare you for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Juegos De Ingenio Del Club Mensa (051 055)
Solve these math problems to practice for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (056 060)
Solve these math problems to practice for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (061 065)
Solve these math problems to practice for future math competitions. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (066 070)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (071 075)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (076 080)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (081 085)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (086 090)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.
Mensa Espana
Mensa: Juegos De Ingenio Del Club Mensa (091 095)
Get ready for future math competitions with these five math problems. Each problem is marked according to their levels of difficulty.