There's lots of what I want to say about maths. Question is, will you dare to read it?

Do you want to achieve the best grade, but still losing marks? Do you think you know your maths, but your mocks (or any training tests you've done) are still looking worse than you expected? Let's have a look at unnecessary mistakes which cost you your marks.

Wait... what?

Yes, become a friend with your calculator. And don't try to tell me you don't have any (calculator... I'm not questioning your status in terms of having friends).