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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.
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University of Cambridge: Nrich: Cross Country Race
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.
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University of Cambridge: Nrich: Pumpkin Pie Problem
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Creating Cubes
On this one page website use a table to help you organize the information so that you can solve this cube problem. When you are finished you can check your answer right at the website.
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University of Cambridge: Nrich: Mrs. Beeswax
This logic problem involves putting gold coins in plum pudding. A solution is available to check your results.
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University of Cambridge: Nrich: Tom's Number
Use the clues Tom gives you to figure out his number. The solution is right there on this one page website.
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University of Cambridge: Nrich: Calendar Calculations
Follow the directions and use your problem solving skills on this one page website to help you find the solution. Solutions are available right on the NRich website.
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University of Cambridge: Nrich: Watching the Wheels Go `Round and `Round
Use the formula for the circumference of a circle to solve the challenge of this problem. The solution is available at this one page website.
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University of Cambridge: Nrich: Red Balloons, Blue Balloons
Use your problem solving skills to help Katie and Will solve the problem they have with blowing up their balloons until they pop. See if you can discover the solution on your own at this one page website. Then check the solution...
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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.
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University of Cambridge: Nrich: Amy's Dominoes
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.
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University of Cambridge: Nrich: Twenty Divided Into Six
On this one page website sharpen your logic and addition fact skills while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Rectangle Tangle
On this one page website sharpen your logic and fractional part skills while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Is It Magic or Is It Maths?
On this one page website sharpen your logic and pattern recognition skills while working on this magic challenge. The solution is available to double check your solution.
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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.
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University of Cambridge: Nrich: Shapes on the Playground
On this one page website the problem will require you to use your problem solving skills to find your solution. You can then check it right at the website against the solution they have available.
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University of Cambridge: Nrich: Where Are They?
Test your logic, polygon properties, and pattern recognition skills working on this challenge. Solution included.
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University of Cambridge: Nrich: Plates of Cookies
As you start to work on this problem, keep in mind that in England cookies are called biscuits. Solution provided.
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University of Cambridge: Nrich: A Flying Holiday
Some may think this problem is for the birds but you will need to use your problem solving skills to come up with a reasonable answer. Then check this one page website for the solution.
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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.
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University of Cambridge: Nrich: Disappearing Square
This one page website explains how to find the area of a triangle with an interactive graphic. It then offers a challenge. The solution is available right at the website.
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University of Cambridge: Nrich: A Bit of a Dicey Problem
Short website offers a look into the theoretical probability of tossing dice. Several questions related to the throwing of dice are included.
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University of Cambridge: Nrich: The Hare and the Tortoise
On this one page website sharpen your logic and rate measurement skills while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Augustus' Age
Use a simple formula to help you figure out the age of the mathematician Augustus de Morgan. When done, check your results against the solution.