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Activity
University of Cambridge

University of Cambridge: Nrich: Month Mania

For Students 3rd - 8th Standards
Sharpen your logic and pattern-creation skills while working on this challenge. A solution is available to check your results.
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Activity
University of Cambridge

University of Cambridge: Nrich: New House

For Students 3rd - 8th
On this one page website sharpen your logic and spatial sense skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Doplication

For Students 3rd - 8th Standards
On this one page website sharpen your logic and pattern extension skills while working on this challenge. The solution is available to double check your solution.
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Unit Plan
University of Cambridge

University of Cambridge: Nrich: Fencing

For Students 3rd - 8th
On this one page website sharpen your logic, area, perimeter, and pattern recognition skills while working on this unique fencing challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Sticky Triangles

For Students 3rd - 4th
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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Activity
University of Cambridge

University of Cambridge: Nrich: Special 24

For Students 3rd - 8th Standards
On this one page website sharpen your logic, square number, and problem solving skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Octa Space

For Students 3rd - 4th Standards
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!
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Activity
University of Cambridge

University of Cambridge: Nrich: Penta Place

For Students Pre-K - 1st
Sharpen your logic and pattern recognition skills while working on this challenge. Solution included.
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Activity
University of Cambridge

University of Cambridge: Nrich: Sometimes We Lose Things!

For Students 3rd - 8th
On this one page website sharpen your logic, base nine, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Routes 1 and 5

For Students 3rd - 8th Standards
Sharpen your logic and basic arithmetic skills while working on this challenge. Solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Two Primes Make One Square

For Students 3rd - 8th
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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Activity
University of Cambridge

University of Cambridge: Nrich: Adding Triangles

For Students 3rd - 8th
Sharpen your logic and geometry skills by finding the area of a triangle. Solution available.
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Activity
University of Cambridge

University of Cambridge: Nrich: Big Dog, Little Dog

For Students Pre-K - 1st Standards
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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Activity
University of Cambridge

University of Cambridge: Nrich: A Square Deal

For Students 3rd - 8th Standards
On this one page website sharpen your logic, ordered pairs, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Counting Cards

For Students Pre-K - 1st Standards
On this one page website sharpen your logic and factor skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Grouping Goodies

For Students Pre-K - 1st Standards
On this one page website sharpen your logic and factor skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: What's Left?

For Students 3rd - 5th
On this one page website sharpen your logic and factor recognition skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Trick or Treat

For Students 3rd - 5th
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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Activity
University of Cambridge

University of Cambridge: Nrich: Train Carriages

For Students K - 1st Standards
On this one page website sharpen your logic and pattern creation skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: It Must Be 2000

For Students 3rd - 8th Standards
On this one page website sharpen your logic and pattern extension skills while working on this challenge. The solution is available to double check your solution.
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Activity
University of Cambridge

University of Cambridge: Nrich: Arranging the Tables

For Students 3rd - 5th
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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Activity
University of Cambridge

University of Cambridge: Nrich: Good Work if You Can Get It

For Students 3rd - 8th Standards
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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Interactive
University of Cambridge

University of Cambridge: Nrich: Game Fifteen

For Students 1st - 5th
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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Activity
University of Cambridge

University of Cambridge: Nrich: Find the Fake

For Students 3rd - 8th
Find the fake bar of gold in this problem and you are only allowed to use the scale twice. Can you do it? Once you have your solution check this one page website to verify it.

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