Many people when they think of maths think of arithmetic, adding, subtracting, multiplication, and division. Arithmetic is only a small part of mathematics and there are many more topics to explore. Fortunately you don't need to learn all of them, just the ones relevant to you. If you think of maths as being like a toolbox, then each topic is a new set of tools that you can add to your toolbox.
Topics included in these guides are:
If you want to get an idea of the different topics then you can take a look at the Mathematics Portal on Wikipedia