There is a study guide you can download for the new AT-SA test that greatly helped me (got a TOL for last year's bid currently awaiting an FOL). Download mental math apps and practice difficult multiplication questions focusing on accuracy and speed (answers in under a minute). I practiced LSAT reading comprehension and logic games questions which are harder than the AT-SA, but it greatly assisted with speed and accuracy, so I was able to finish that portion with time to spare. The study guide is not free, but it has the scenarios, memory, and situational awareness portion on it (cost was $30). All together you should be well prepared. Good luck!