So guys, I know that we have a crappy calculator on real DAT. I wonder is it similar to CDM calculator cuz I somewhat ok with their calculator...or is it worse. Also, I do not have Math Destroyer. So far, I only use DAT Destroyer math that goes with the science and CDM. For some reasons, I think they are considerably simple. Does DAT Destroyer math portion good enough for prep? I have limited amount of time/money. Also, are Math Destroyer questions similar to Dat destroyer math questions, but just more practice? Sorry for all these merry go round questions. Just don't like surprise that hurt my score. Thanks.