That Number Square
Age 5 to 11
Challenge Level
Exploring the structure of a number square: how quickly can you put the number tiles in the right place on the grid?
Five More Coins
Age 7 to 11
Challenge Level
Could Ben have any amount of money between 5p and £2 in his pocket if he has five coins?
Less Is More
Age 7 to 11
Challenge Level
Use your knowledge of place value to try to win this game. How will you maximise your score?
3 by 3 Mathdokus
Age 7 to 14
Challenge Level
Can you use the clues to complete these 3 by 3 Mathematical Sudokus?
4 by 4 Mathdokus
Age 7 to 14
Challenge Level
Can you use the clues to complete these 4 by 4 Mathematical Sudokus?
More Less Is More
Age 7 to 14
Challenge Level
In each of these games, you will need a little bit of luck, and your knowledge of place value to develop a winning strategy.
5 by 5 Mathdokus
Age 7 to 16
Challenge Level
Can you use the clues to complete these 5 by 5 Mathematical Sudokus?
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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.