Mathematical Wizardry

Mathematical Wizardry

All of the tricks in this feature seem magical, but it's mathematics that makes them work.  Figure out the maths behind the tricks, and amaze your friends and family with your mathematical wizardry!
 

The Number Jumbler 

Age 7 to 14
Challenge Level
The Number Jumbler can always work out your chosen symbol. Can you work out how?

Your Number Is... 

Age 7 to 14
Challenge Level
Think of a number and follow the machine's instructions... I know what your number is! Can you explain how I know?

Your Number Was... 

Age 11 to 14
Challenge Level
Think of a number and follow my instructions. Tell me your answer, and I'll tell you what you started with! Can you explain how I know?

Twisting and Turning 

Age 11 to 14
Challenge Level
Take a look at the video and try to find a sequence of moves that will untangle the ropes.

More Twisting and Turning 

Age 11 to 16
Challenge Level
It would be nice to have a strategy for disentangling any tangled ropes...

All Tangled Up 

Age 14 to 18
Challenge Level
Can you tangle yourself up and reach any fraction?

Mysterious 6174 

Age 14 to 18
Challenge Level
Find out about the mystery of 6174 in this article from Plus Magazine.