Question

I GOT 12/20 IN Maths. I know everything but I am slow, what should I do?

Answer 1

Practise hard to increase your speed

Answer 2

Practice Practice Practice.
Practice makes man perfect! It's true saying. Try practicing math every day for at least half an hour. And don't be lazy in following this. And try conducting a self-slip test. Note down the time u start the test and end the test. And u can see how fast/slow ur able to do it. And try to do much faster in the next self-slip test.
 U will definitely see a good result.  All the Best. Happy Studying. 
:)