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 last date for sending in solutions is Monday 8 July. 

The Number Jumbler live

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

Your Number Is... live

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... live

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 live

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 live

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

All Tangled Up live

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.