After I've taken an SAT, and I want to see my mistakes/review questions I've missed, I have to click through each question individually, searching for the one I got wrong. I suggest that Khan Academy makes it so that, just as it is in the regular daily practice questions, there are cubes at the bottom of your screen that can be green or red (depending on if you got the question right) and that you can click on the question-cube to instantly go to that question. This would make reviewing SATs a whole lot easier.