Here are ten cards numbered 0 to 9:

Using all ten cards, rearrange them to make five prime numbers. Can you find any other ways of doing it?

This problem is based on an idea from Mathematical Challenges for Able Pupils Key Stages 1 and 2, published by DfES. You can order copies on 0845 60 222 60 or via email: dfes@prolog.uk.com. Please quote code 0083/2000.