When I set up the grade book before the semester starts, I always set the midterm scantron rows to be 59 points and the SMA rows to be 1 point. But I never know the exact splits until I actually write the exam.
Thursday's exam worked out to be 50 and 10.
So I just went in and modified those two rows of the grade book to read "out of 50" and "out of 10." But the other two midterms will be at 59 and 1 until the day they are taken. So Exam 2 might eventually be 46 and 14, for instance, but for now, I just leave it as 59 and 1.