Why did I USED to be good at math?

Say did you start asking questions and getting answers here in yahoo when you were in 11th grade? Just wondering.

You dropped the x. (get it?) You lost your numerical skill when you lost your enthusiasm over math. Like riding a bike, you know how. Just get back into it.

Different grade levels teach different things...in 11th grade most people learn alg 2 or pre-cal. Which is more difficult so this can be why. You dont really understand these new concepts

It is a matter of doing work.
In the beginning math was easy for you and with little or no work you made A's.
At some point all students find that the math gets harder and they must do work ... sometimes a lot of work --- if they want to make another A. My guess is that you were so use to doing little or no work in math that you did not start doing more work.