Skip to main content
Our
Primary
and
Secondary
Advent calendars are back!
Main navigation
Teachers
expand_more
Early years
Primary
Secondary
Post-16
Professional development
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 and 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
Properties of numbers
Place value and the number system
Calculations and numerical methods
Fractions, decimals, percentages, ratio and proportion
Patterns, sequences and structure
Coordinates, functions and graphs
Algebraic expressions, equations and formulae
Geometry and measure
Measuring and calculating with units
Angles, polygons, and geometrical proof
3D geometry, shape and space
Transformations and constructions
Pythagoras and trigonometry
Vectors and matrices
Probability and statistics
Handling, processing and representing data
Probability
Working mathematically
Thinking mathematically
Mathematical mindsets
Advanced mathematics
Calculus
Decision mathematics and combinatorics
Advanced probability and statistics
Mechanics
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
32989
solution
33607
solution
33794
solution
34400
solution
34417
solution
35135
solution
35275
solution
35281
solution
35308
solution
35317
Pagination
First page
« First
Previous page
‹‹
…
Page
134
Page
135
Current page
136
Page
137
Page
138
…
Next page
››
Last page
Last »
