Waste and Recycling
Age 14 to 18
Challenge Level
Can you use the given information to work out how much plastic a family recycles?
Frosty Is Melting!
Age 14 to 16
Challenge Level
Frosty the Snowman is melting. Can you work out how much less snow he contains when he is at half his starting height?
Minimal Connector
Age 14 to 18
Challenge Level
Can you find the most efficient way to connect four towns?
Frosty the Snowman
Age 16 to 18
Challenge Level
Frosty the Snowman is melting. Can you use your knowledge of differential equations to find out how his volume changes as he shrinks?
Who's Who?
Age 11 to 16
Challenge Level
Can you solve the clues to find out who's who on the friendship graph?
Euler Meets Schlegel
Age 16 to 18
Challenge Level
Discover how networks can be used to prove Euler's Polyhedron formula.
Eating for a Better Planet
Age 11 to 16
Challenge Level
How do you balance the environmental impacts and nutritional benefits of different foods?
Copyright © 1997 - 2022. 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.