If you've been out of the math game for a while then I don't recommend you start on the more difficult materials, that won't do you any good. Chad has some QR videos but personally I can't speak on any of them as I didn't use them, you might also want to try doing the DAT Destroyer QR questions as those aren't quite as difficult as the actual Math Destroyer
I got a 30 on the QR, The highest math I had taken was calc3 about 3-4 years prior, and not another math class since.
I did math destroyer early in my studies but abandoned it when approaching crunch time because I felt the questions were too long to give a real representation of my time constraint(however I did make the effort to find an in depth understanding of each question). I could never finish one of those tests within 45 minutes. Instead I tried some of the qvault quizzes and found that my timing picked up by about quiz 6. Then I went and did all of chads math quizzes. When I came back to the qvault I was spot on with time and scoring 25+ on the final few quizzes. The day before the dat I redid all of chads quizzes for math, this really picked up my speed. On the actual dat I finished all but 2 questions with 15 minutes remaining, the extra time I used to figure out those 2 questions that I was unsure about.
Yes. You will get discouraged at first because it's super hard but the real thing will seem easy. 👍
Just make sure you know how to do every type of questions. (i.e. rate problems, simple trig, solving for x, inequalities, volume calculations, probabilities, etc.)
SO ON POINT . This section was an uphill battle the first time I took it AND the second time I took it. But hey, even I improved a point from 2011 to 2013.