What use is the maths I study at school?

The maths you are learning at school now is compulsory. This is because the people in charge have decided that it belongs to the general toolkit everybody needs to go through life. But sometimes it can be hard to see why. It's obvious that we all need a basic understanding of numbers, but how much is basic?

Below, we present various subjects in maths, explain why they are being taught, and give some examples of careers that use them. And these are more varied than you might think. Your school maths helps to keep doors open, no matter what you decide to do later on.