Maximum change

Lots of coins and not change for £1.

Create my FREE account

including a 7 day free trial of everything

Email Address

Password

Newsletter

The URBrainy email newsletter (sent every 2 weeks) provides resource updates and helpful guides for teaching and learning.

Yes, I would like to receive the URBrainy newsletter.

I agree to the Terms and Conditions and Privacy Policy

Already have an account? Sign in

How many ways of making 15. Have you got all of them?

Logical thinking needed here.

Neat little code-breaker. Can you come up with others?

Can you make prime numbers by adding two square numbers?

The latest news, articles, and resources, sent to your inbox weekly.