Haha Math test was timed I think, it was pretty straightforward, just relax and pay attention to detail. You should be able to finish it within the alotted time. The 747 sim (it's been awhile) was an approach or two to landing with FD, and one engine out on the last one. Not graded on the landing. My regional interview was harder (raw data ILS, IQ test, confrontational HR interview, sweating etc).
To whomever asked above, we haven't hired on the 74 in a little while, that side has been stagnant. Supposedly another 747 is on the way, rumor mill tho, I haven't seen anything official. All the action for now is on the -11, subject to change, but I wouldnt come here hell bent on the 747.