[Feature request] Add ability to print math practice tests

Hi Megan! 

Though we don't currently offer the ability to print Praxis math practice tests, the Praxis Test Prep product is very near and dear to our hearts, and we are constantly working on improving the experience. So your voice is of great value to us.

I've gone ahead and passed your feedback along to the team and it will be part of our conversation as we plan the future of Khan Academy. 

Thanks again for your interest in improving Khan Academy :)