<p>Math Level 2 actually does not cover calculus; it covers everything before calculus, so the highest level topics on the exam are material from pre-calculus. Most colleges require two SAT subject tests, so I would recommend that you take three SAT Subject Tests which would be U.S. History, Math Level 2, and Chemistry. I actually took all these SAT Subject Tests and I found these review books best accordingly:
Chemistry: McGraw Hill
Math Level 2: Barron’s
U.S. History: Barron’s
These books are all good for review but for the most accurate tests I would recommend buying College Board’s books on the SAT Subject Tests.</p>