Welcome to the home of rich mathematics
Teachers
Primary Pupils
The tasks in this feature encourage you to play and explore, then think deeply about the mathematical ideas underneath.See all problems Open for Solution
See all Resources for ages 5-11
Secondary Students
In this feature, explore the problems and then try to explain what's going on!
See all problems Open for Solution
See all Resources for ages 11-18
Your Solutions
See if your solutions to our recent problems have been published
Primary
Secondary
For regular updates, sign up for our Newsletter
Primary
Secondary
For regular updates, sign up for our Newsletter
Copyright © 1997 - 2019. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.