Hi. If you want to get at least a B or above in maths, you seriously need to do plenty of revising rules, understanding the tricky questions that catch you out, and practice.
You need to realize that maths is all about rules. Try thinking of different ways to get the same answer, it makes you think of things differently.
95%+ =A*
85%+ =A
75%+ =B
These are probably not the grade boundaries you have at school, but it's good to know what you're aiming for, so you can get your best possible mark. Hope you improve!