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University of Cambridge: Nrich: Routes 1 and 5
Sharpen your logic and basic arithmetic skills while working on this challenge. Solution.
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University of Cambridge: Nrich: Coordinate Tan
Enter the World of Tan. The solutions to these challenges are located right on the website.
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University of Cambridge: Nrich: A Cartesian Puzzle
This one page website lets you practice plotting points on the coordinate grid. See if you can find the missing coordinates to complete the shapes. When you are finished the solutions are only a click away.
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University of Cambridge: Nrich: Transformation Tease
Follow the directions at this one page website. You will get lots of practice plotting points on the coordinate grid and experience with transformational geometry.
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University of Cambridge: Nrich: Treasure Island
See if you can find what the ordered pairs are for each of the items on the map. This one page website will help you practice plotting points on the grid. You can check the answers right on the website.
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University of Cambridge: Nrich: What Are You Plotting?
This one page website is for practicing graphing ordered pairs. It lets you know right away if your choice is incorrect. At the bottom of the page their is a challenge with the solution just a click away.
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University of Cambridge: Nrich: The Magic Number and the Hepta Tree
Use your calculator to help you solve this challenge at this one page website. You can check your solution with only one click of the mouse.
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University of Cambridge: Nrich: All the Digits
This site has a logic and reasoning math problem.
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University of Cambridge: Nrich: A Puzzling Cube
See if you can figure out which symbols are on which cube face at this one page website. The solution is just a click away once you have your solution in mind.
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University of Cambridge: Nrich: Two Primes Make One Square
On this one page website sharpen your logic, prime numbers and square numbers skills while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Three Cubed
Use the shapes provided and figure out how they fit together to make a 3 X 3 cube at this one page website. The solution is readily available right at the website.
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University of Cambridge: Nrich: Skeleton Shapes
At this one page website a variety of polyhedra are shown. The challenge is to create the skeleton for each polyhedron and identify the needed materials. You can check your solution right at the website.
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University of Cambridge: Nrich: Code Breaker
Do your logic skills need sharpening? Use the interactive code breaker to at this one page website to do just that! The solution is available to double check your solution.
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University of Cambridge: Nrich: Egyptian Fractions
On this one page website find the solution to this Egyptian fractions challenge by using equivalent fractions and your problem solving skills.
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University of Cambridge: Nrich: Adding Triangles
Sharpen your logic and geometry skills by finding the area of a triangle. Solution available.
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University of Cambridge: Nrich: Two Stones Game
Sharpen your problem-solving and strategy skills while playing the interactive game, Two Stones. The rules are simple, but the game requires some thinking if you want to beat the computer. Watch as the play proceeds to see what it takes...
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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...
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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.
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University of Cambridge: Nrich: Games the Triangle Game
Use this game to improve your knowledge and understanding of triangles and naming vertices. Just read and follow the instructions! [Requires Java.]
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University of Cambridge: Nrich: Games Frogs
Use this interactive game to improve your knowledge and understanding of patterns and algebra. Can you describe a rule to follow where you make the least moves? Just follow the instructions below it.
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University of Cambridge: Nrich: Game Counter Roundup
Sharpen your problem solving and strategy skills playing this interactive game, Counter Roundup. The rules are simple but the game requires some thinking if you want to beat the computer. There is a "Get Printable Page," link at the top...
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University of Cambridge: Nrich: Game Tantaliser Tantrix Discoveries
This game combines tangrams and pattern recognition to offer you a challenge. The page has a "Printable page" link if you want to print it out to help you work with the problem.
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University of Cambridge: Nrich: Building Stars
This interactive activity gives you an opportunity to color in a tessellation that is different from the usual. Read the short introduction to find out more about this tessellation that doesn't repeat.
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University of Cambridge: Nrich: Coordinate Cunning
Play this game for two and learn how to graph ordered pairs on the coordinate plane at this one page website. You will know right away if you have the correct coordinates.