<p>Should I get Grubber's math guide, or Dr. Chung's? I score in the lower 600 percentile (600-620) on practice tests. I want to aim for a 750, or better.</p>
<p>From what i hear on here those books are good, assuming your mistakes are form lack of knowledge (not carelessness or time constraints).</p>
<p>Do you know which would be better for someone like me? (600-620). I want to rise to 750+.</p>
<p>I have never used either, but I’ve heard that Gruber’s is the best.</p>