He puts the answer key up at 10 pm the night of the exam, so if you keep your test
sheet and mark both the answer
sheet and the kept copy, you can grade your test. I didn't finish and guessed on the last five, but only got to mark one of those (wrong). So worst case, I got a bit over 50%, best case a bit over 60%. The averages tend to run in the 60s, so probably not awful. The teacher said it's only a number, not a D, so I'll take his word for it.