How Numbers Behave

How numbers behave

Our number system uses powers of 10 to express large numbers concisely. These problems have been chosen to help you develop a better understanding of this place value system.


Dicey Operations 

Age 11 to 14
Challenge Level
Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Two and Two 

Age 11 to 16
Challenge Level
How many solutions can you find to this sum? Each of the different letters stands for a different number.

Difference Sudoku 

Age 14 to 16
Challenge Level
Use the differences to find the solution to this Sudoku.

Always a Multiple? 

Age 11 to 14
Challenge Level
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...

Method in Multiplying Madness? 

Age 7 to 14
Challenge Level
Watch our videos of multiplication methods that you may not have met before. Can you make sense of them?

Power Mad! 

Age 11 to 14
Challenge Level
Powers of numbers behave in surprising ways. Take a look at some of these and try to explain why they are true.

Short Problems 

Age 11 to 14
A collection of short problems to test your understanding of place value.