I sat for BEC on 7/22 and my advice is to "be familiar" as Peter Olinto says with much of the material he says to memorize. Granted you have to memorize how to calculate RI, but you don't have to memorize every minute detail about the money market. You have to be familiar enough with the material to be able to read a multiple choice question, read the answer choices, and go from there. It is not going to ask you to recite the requirements. There are no SIMS and there is no written communication, purely MC.
I was in the same boat as yourself, I really began to lose it during B3, especially during the supplemental question. They were extremely trying of my patience. I would get through a 2 paragraph question and answer it correctly, only to press next to have another 2 paragraph question, and then another. My guess as to the reason Becker does this is to somewhat over prepare you for the exam from a calculation aspect. Although my test was about 40% calculations, I was able to stay on budget with time. I never got to a calculation based problem and said "what is this? I can't do this!".
During the review of BEC I remember thinking that it was the worst section yet. This seems to be a trend. During REG (first section) I recall thinking to myself that it can't get anymore boring/tedious than business law. During AUD I recall thinking that business law may not have been that bad afterall. BEC I got to the point where I could barely get motivated enough to do more questions.
REG: 5/26 - 90hrs (Pass) AUD: 7/1 - 86hrs (Pass)
BEC: 7/22 - 72hrs (Pass) FAR: 8/31 - 56hrs (Wait)