Math Slice
Math Slice: Smart Guess Game
Can you guess the correct number between 1 and 99 in less than 30 tries? Play this fast paced, interactive game that tests your number sense and reasoning skills. If your are a great guesser, your name will be posted.
University of Cambridge
University of Cambridge: Nrich: Read This Page
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
Birmingham Grid for Learning (UK)
Birmingham Grid for Learning: Guess My Number to Twenty
See if you can guess his number between 1 and 20. He will tell you if your guess is too high. He will also tell you when it is too low. These hints will help you figure out what his number is!
Birmingham Grid for Learning (UK)
Birmingham Grid for Learning: Guess My Number to 100
See if you can guess his number between 1 and 100. He will tell you if your guess is too high. He will also tell you when it is too low. These hints will help you figure out what his number is!
University of Cambridge
University of Cambridge: Nrich: Make 100
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Spelling Circle
On this one page website use trial and error to find the words hidden in the spelling circles. Check your solution right at the website.
University of Cambridge
University of Cambridge: Nrich: A Magical Number Maze!
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: 1 to 8
Use the clues and problem solving strategy, trial and error, to solve this problem. When you have your solution you can check it right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Highest and Lowest
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Number Juggle
Use those problem solving skills to find a solution to this triangle problem. When you have your solution you can check it right on this one page website.
University of Cambridge
University of Cambridge: Nrich: 1, 2, 3, 4, 5
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Konigsberg Plus
See if you can solve this classic problem that Leonhard Euler first presented in 1736. Use the interactive section of this website to help you.
PBS
Nova Online: How Many Pearls? A Weight & Volume Game
This interactive game has students apply skills in estimation, measurement, and basic addition using pearls. Students are asked to estimate the number of pearls in a treasure chest by making predictions and using number sense. The skills...
Birmingham Grid for Learning (UK)
Birmingham Grid for Learning: Guess My Number to 10
This resource allows students to compare number values, as well as practice other number concepts.
Channel 4 Learning
Channel 4 Maths: Mathszone
Can you help Ben and Mai escape their captors and foil the robbers' getaway plan? Test your mathematical aptitude in this captivating, interactive, adventure game that uses a PDA/calculator to solve math clues. Students will activate...
University of Cambridge
University of Cambridge: Nrich: Eleven?
Only by replacing these letters with the correct digits can you make this problem add up correctly! The solution is located right at this one page website.
University of Cambridge
University of Cambridge: Nrich: What's It Worth?
Use this one page website to practice the problem solving strategy of trial and error! The solution is available right at the website.
University of Cambridge
University of Cambridge: Nrich: Money Bags
Practice your problem solving skills while you help Ram figure out how many pennies to put in each bag. The solution is right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Buckets of Thinking
Trial and error is just one of the problem solving strategies that you could use to solve this bucket problem. After you finish view the solution at this one page website.
University of Cambridge
University of Cambridge: Nrich: Game Khun Phaen Escapes to Freedom
This interactive game is based on a famous character in a Thai legend. See if you can figure out how he escaped! You will have to use your problem solving and spatial relationship skills to figure out this one.
University of Cambridge
University of Cambridge: Nrich: Magic Triangle
Use your problems solving skills to make everything add up correctly for this challenge. The solution is right at this one page website.
University of Cambridge
University of Cambridge: Nrich: Butterfly Flowers
This one page website offers a challenge that will require you to use your problem solving skills. There are teacher tips and the solution available to help.
University of Cambridge
University of Cambridge: Nrich: Magic Circles
Use your problem solving skills to figure out this challenge. A number of solutions are available right at this one page website.
University of Cambridge
University of Cambridge: Nrich: Game Pumpkin Patch
Sharpen your problem solving and strategy skills playing this Somali game, Pumpkin Patch. The rules are simple but the game requires some thinking. There is a "Get Printable Page," link at the top to print out the materials you need.