I took my DAT a year ago so I don't remember completely, but I feel like there were definitely more than 4-5. Maybe we only used 4-5, but I think I remember having my head full of formulas. Regardless, it isn't a hard thing to do. OP -- Just make sure you understand the concepts behind each equation and it should be way easier to use and remember. Also, don't go around saying everything is BS. Sure - it's "BS" that we have to be tested on random math equations, entropy, botany, and taxonomy that we'll never use again in our lives, but it's what everybody has to do, and what everybody gets through.