How many different ways can you make 18?

..........using British currency coins?

This was Harry's homework challenge.
Also how many different ways can you make 14p with British coins?
We found so many ways that there wasn't room on the paper!
Then we made chocolate fridge cake. 
This was not home work as such, but had been one of the activities at school that day. Harry came home with an exotic concoction containing chocolate, sultanas, raisins, dried cherries and silver balls!
He was keen to experiment further...

The photo actually shows his spellings ready for the test tomorrow!
Rather a lot of homework on reflection.