*You may wish to take a look at the related problem Pennies and Tuppences first.*

Alison has some 1p, 2p, 5p and 10p coins, and has been working out different ways of making 12p.

*"If I use a 10p, I will need 2p more, so there's 2 ways of doing that.
If I use two 5ps, I will also need 2p more, so there's 2 ways of doing that.
Or if I use..."*

10p |
5p |
2p |
1p |
Number of ways |

1 of these | none of these | 2 | ||

none of these | 2 of these | 2 | ||

none of these | 1 of these | |||

**Can you help Alison finish her table? You should find there are 15 ways altogether!**

**Is there a method for working out how many ways there are of making any amount using 10p, 5p, 2p and 1p coins?**

What if you also had 20p and 50p coins?

It might get very time-consuming, even if you have a good method!

If you know a little programming, perhaps you could write a computer program to help.