Best advanced Quant prep book?

I'd say the biggest problem with PR is that they don't tell you to take GMATPrep. The math on PR CATs just doesn't cut it. You need to do GMATPrep if you need some more work I'd suggest getting the MGMAT tests.

The MGMAT prep books are VERY thorough. They cover ever single topic you'll likely see on the real thing.

NN

If the timing is the problem, then you're wasting your time on the math. As you can tell, the GMAT is a 2 part test - the actual material is the first and the second part is the time you're allowed to use. You hould get the OG Quant book. I will have different questions in it than the orange book. When you get the green book, don't just go through to problems and answer them. Get a stop watch, or some kind of timer. If you're answering 5 questions, give yourself 10 minutes. Create a test-like environment. That will help you a bunch.

On your prior GMAT's did you get to all the questions? Did you have to guess on some? On how many did you have to guess? If there are some that you did not get to, how many did you leave blank?

On the real test, I had about 7 questions left with 5 minutes remaining so I had to guess one, do one, guess one...etc. but by then I was in panic and definitely not focused. On the PR practice tests, I could track my score as I took the test, and I would hit 48-50 points around the mid-20's questions but as I ran out of time and rushed, my score started coming down.

I think to refresh myself, I'll go through the Purple and Green books first and do the GMATPrep tests over and over (didn't know you could take it over), then do the gmatclub practice tests. THEN get the MGMAT books for whichever subject matters I still feel weak on.

Get the MGMAT number properties, word translations, equations and inequalities and geometry books. Those 4 cover pretty much every testable aspect of gmat (the FDP book is probably not that useful for you if you are already in the 45+ range). After getting that book and going through its problems + the OG problems, do the GMAT challenges.

If you can complete all of these and survive you will see some pretty worthwhile results

Do the OG but don't get too focused on it. Understand all the types of questions towards the end. There are questions very similiar on the exam. I sound like a broken record on this forum but also GMATPREP OVER AND OVER AGAIN for quant. lol And get the challenges. I think those are all you need.

Get the GMAT Challenges, they are easily the best resource to bring up your Quant score. If you can do those tests, then the real GMAT will seem like a piece of cake.