best prep books for SAT math?

<p>Any suggestions for math prep books? I did pretty poorly on the math, 590 (verbal scores were good).</p>

<p>Another question, off topic: Now that the writing SAT II is gone, do most colleges still require 3 SAT II's?</p>

<p>I think that the Barron's is pretty good. I just did the diagnostic and found the maths section much tougher than the ones in the Princeton Review.</p>