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University of Cambridge: Nrich: The Lily Pond
Using your problem solving skills find the best way for Freddie to visit Sammy. On this one page website the solution is right there for you when you have found a solution.
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University of Cambridge: Nrich: Page Numbers
Exactly 195 digits have been used to number the pages in a book. How many pages does the book have? Sounds simple enough--if you have the right problem-solving skills. Solution provided.
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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: Packing for the School Trip
Help Lorenzie figure out how many combinations he can make with the pants and shirts he is packing. Check the website for the solution.
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University of Cambridge: Nrich: Sticky Triangles
On this one page website sharpen your logic, table making, and pattern recognition skills while working on this triangle challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Good Work if You Can Get It
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: 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.
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University of Cambridge: Nrich: Six Is the Sum
You will probably want to make a list to figure out the solution to this problem. There are teacher notes and the solution right at this one page website.
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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: Sissa's Reward
On this one page website use a table to help you solve this problem about the chess board and grains of rice. The solution is available right on the website.
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University of Cambridge: Nrich: 5 on the Clock
Use your math skills to solve this problem involving a digital clock face. 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: Bunny Hop
You will want to "hop" right on this problem and see if you can find a solution at this one page website. Then you can check it right there.
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University of Cambridge: Nrich: Penta Primes
Using only the single digits listed make as many prime numbers as you can for this challenge. After you have your list you can check this one page website and it will show you the solution.
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University of Cambridge: Nrich: Alphabet Blocks
Help Santa and the elves keep track of how many blocks they need for their alphabet blocks. Solution provided.
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University of Cambridge: Nrich: What Shape and Color?
Fill in the chart and see which shapes and which colors belong in which rows and columns. The solution is readily available at this one page website.
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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.