Skip to main content
Take a look at our Low Threshold High Ceiling
guidance and webinar recordings
Main navigation
Teachers
expand_more
Early years
Primary
Secondary
Post-16
Students
expand_more
Primary
Secondary
Post-16
Parents
expand_more
Early years
Primary
Secondary
Post-16
Problem-Solving Schools
expand_more
What is the Problem-Solving Schools initiative?
Becoming a Problem-Solving School
Charter
Hub
Resources for PD
Events
About NRICH
expand_more
About us
Impact stories
Support us
Our funders
Contact us
search
menu
search
close
Search NRICH
search
Or search by topic
Number and algebra
Patterns, sequences and structure
Properties of numbers
Place value and the number system
Fractions, decimals, percentages, ratio and proportion
Calculations and numerical methods
Algebraic expressions, equations and formulae
Coordinates, functions and graphs
Geometry and measure
3D geometry, shape and space
Transformations and constructions
Vectors and matrices
Measuring and calculating with units
Pythagoras and trigonometry
Angles, polygons, and geometrical proof
Probability and statistics
Handling, processing and representing data
Probability
Working mathematically
Thinking mathematically
Mathematical mindsets
Advanced mathematics
Decision mathematics and combinatorics
Mechanics
Calculus
Advanced probability and statistics
For younger learners
Early years foundation stage
England
Type
- Any -
Article
Game
Problem
Keystage
- Any -
Age 3 - 5
Age 5 - 7
Age 7 - 11
Age 11 - 14
Age 14 - 16
Age 16 - 18
Challenge level
- Any -
1
2
3
solution
153165
solution
153166
solution
153167
solution
153168
solution
153169
solution
153170
solution
153171
solution
153172
solution
153173
solution
153174
Pagination
First page
« First
Previous page
‹‹
…
Page
262
Page
263
Current page
264
Page
265
Page
266
…
Next page
››
Last page
Last »