Hi, what do you want to do?
University of Cambridge
University of Cambridge: Nrich: Home Time
Use the clues and logic to solve this car pool problem. The solution provided allows you to check your results.
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: All the Digits
This site has a logic and reasoning math problem.
University of Cambridge
University of Cambridge: Nrich: Mixed Up Socks
Your reasoning skills will come in handy as you find solutions to these "sock" problems. Solutions are available on this one page website.
University of Cambridge
University of Cambridge: Nrich: Make 100
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.
University of Cambridge
University of Cambridge: Nrich: Find the Fake
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.
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: 1, 2, 3, 4, 5
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.
University of Cambridge
University of Cambridge: Nrich: Highest and Lowest
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.
University of Cambridge
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!
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: Number Juggle
Use those problem solving skills to find a solution to this triangle problem. When you have your solution you can check it right on this one page website.
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: Seven Square Numbers
On this one page website sharpen your logic, square numbers, and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Cycling Squares
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.
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: Game Khun Phaen Escapes to Freedom
This interactive game is based on a famous character in a Thai legend. See if you can figure out how he escaped! You will have to use your problem solving and spatial relationship skills to figure out this one.
University of Cambridge
University of Cambridge: Nrich: Magic Triangle
Use your problems solving skills to make everything add up correctly for this challenge. The solution is right at this one page website.
University of Cambridge
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.
University of Cambridge
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.
University of Cambridge
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.
University of Cambridge
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.
University of Cambridge
University of Cambridge: Nrich: Special 24
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.
University of Cambridge
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.