Is there a lot of maths on your course? This site has lots of exercises, formulae sheets and information on all types of mathematics. Whether you are an engineer, a mathematician or a nursing student, this site will be useful to you.
Not sure about your numeracy or statistics skills? This site will help you to assess exactly how you are doing. It has lots of resources to help you improve your skills.
Solves maths equations and can also (if subscribed) provide a step-by-step guide. [Disclaimer: this is an external tool reliability of it is the user's responsibility]
Calculates sample needed depending on Confidence Level and Confidence Interval required [Disclaimer: this is an external tool reliability of it is the users responsibility]
Believe it or not, there is such a thing as a maths magazine! Part of the Millennium Mathematics Project, this internet magazine has everything from articles to history to puzzles and more.