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University of Cambridge: Nrich: Skip Counting
Follow the clues Froggie gives you to help her skip count her way to the pumpkin patch. There are several solutions and you can check yours against the solutions right at this one page website.
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University of Cambridge: Nrich: Chocs, Mints, Jellies
On this one page website, logic and other problem solving skills will help you find a variety of solutions to this sweet dilemma. The University of Cambridge provides possible solutions to aid you in your decision making.
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University of Cambridge: Nrich: Star Find
This one page website offers two interesting tiling problems. The solution is provided here as well.
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University of Cambridge: Nrich: Snails' Trails
Follow the guidelines and figure out the logic needed to bring these two snails together! A solution is available to check your results.
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University of Cambridge: Nrich: Happy Halving
On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.
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University of Cambridge: Nrich: Building With Solid Shapes
Predict which solid shape constructions would be unstable as shown at this one page website. Solutions are available right at the website.
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University of Cambridge: Nrich: All in the Mind
You will have to use visualization to help you solve this challenge. At this one page website, you will be able to check your solution.
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University of Cambridge: Nrich: Roll These Dice
Sharpen your problem solving, sequencing, and spatial reasoning skills playing this interactive game, Roll The Dice. See how many different paths you can take to end up with the same result.
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University of Cambridge: Nrich: Street Party
Sharpen your logic and spatial sense skills while working on this challenge. Solution included.
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University of Cambridge: Nrich: Making Squares
On this one page website sharpen your logic, spatial sense, 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: Month Mania
Sharpen your logic and pattern-creation skills while working on this challenge. A solution is available to check your results.
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University of Cambridge: Nrich: Fencing
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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University of Cambridge: Nrich: Ice Cream
Sharpen your logic and pattern creation skills performing this fun game. Includes solution.
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University of Cambridge: Nrich: Gnomon 1
This interactive activity gives you an opportunity to explore a specific number pattern named the "Fibonacci sequence." See what other patterns you can discover while you manipulate the blocks. There is a "Printable Page" link if you...
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University of Cambridge: Nrich: Sweets in a Box
Improve logic and pattern creation skills performing this game. Includes 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: Diagonal Trace
Develop problem solving skills working with pentagons and then check your results.
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University of Cambridge: Nrich: Briefcase Lock
Use logic and reason to figure out what the correct combination of numbers are for the locked briefcase. At this one page website you can also check the solution.
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University of Cambridge: Nrich: Whose Sandwich?
On this one page website logic and reason will help you figure out who ordered which sandwich. Check your results against the solution they provide at this website.
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University of Cambridge: Nrich: Octa Space
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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University of Cambridge: Nrich: Zargon Glasses
On this one page website using logic you can help Zump figure out which combination of glasses go to which members of the 9 families who ordered glasses one day. Check your answer against the solution provided by the website.
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University of Cambridge: Nrich: Train Timetable
Reasoning will help you figure out the timetable for the trains in this problem. Construct a table and see if it matches the solution this one page website provides.
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University of Cambridge: Nrich: Magic Squares 3x3
Use your problem solving skills to make these magic squares work correctly. The solutions are at this one page website.
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University of Cambridge: Nrich: Magic Squares 4x4
Warm up your problem solving skills to make the magic work in these magic squares by getting the correct numbers in the correct spot. You can check your solution at this one page website.