i took a practice DAT thru kaplan and math was a weak section. I am trying to practice the math section but would like to avoid spending 100-130 dollars on math destroyer or crack math. I picked up peterson's gre/gmat math review from the store for 20 bucks and have taken some practice tests. Does anybody have experience prepping with this book/ other GRE books? Are the practice tests comparable to the real DAT or is it necessary to get math destroyer or crack math to really get the level of difficulty found on the real DAT?