Two-digit Targets
Age 5 to 7 Challenge Level:
You have a set of the digits from 0 – 9. Can you arrange these in the five boxes to make two-digit numbers as close to the targets as possible?
Overlaps
Age 5 to 7 Challenge Level:
What does the overlap of these two shapes look like? Try picturing it in your head and then use the interactivity to test your prediction.
Colouring Triangles
Age 5 to 7 Challenge Level:
Explore ways of colouring this set of triangles. Can you make symmetrical patterns?
Three Squares
Age 5 to 11 Challenge Level:
What is the greatest number of squares you can make by overlapping three squares?
4 Dom
Age 5 to 16 Challenge Level:
Use these four dominoes to make a square that has the same number of dots on each side.
Circular Area
Age 7 to 11 Challenge Level:
How could you find out the area of a circle? Take a look at these ways.
Transformations on a Pegboard
Age 7 to 11 Challenge Level:
How would you move the bands on the pegboard to alter these shapes?
Times Tables Shifts
Age 7 to 11 Challenge Level:
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Triangles All Around
Age 7 to 11 Challenge Level:
Can you find all the different triangles on these peg boards, and find their angles?
NRICH is part of the family of activities in the Millennium Mathematics Project.