Everything in the Math Destroyer is fair game for the DAT, if your DAT is coming soon and time is running out, don't worry about timing and work on areas of weakness. Don't bother wasting time on problems you can easily solve on the DAT. So what I mean is just go through the book circle problems that you struggle with and leave the rest. If you have time I high suggest you do all the problems. The QR on the DAT is not a cake walk for most students.