<p>I got the blue book around a month ago and I've been doing a lot of the math sections. In every single test, I score in the low 600's. What happens is, I get the first 13-15 correct (with maybe the occasional 1-2 wrong in those), and then completely bomb the last 5. This is also the case with the grid in portion. </p>
<p>What book can really help me with those last 5 problems in each section that are killing me?</p>
<p>Gruber’s is generally good for math SAT prep. The questions are harder than those on the actual SAT but its good review/practice. However, I advise you not to use Gruber’s for CR or writing.</p>
<p>Personally, I was scoring high 600’s to mid-700 range on the practice SAT’s and I just got owned on Gruber’s writing sections. Definitely don’t use it for CR.</p>
<p>Math seems about right, though.</p>
<p>Gruber’s Math Workbook and the Blue Book - Review all your mistakes and redo all the problems at least twice. Then you will miss 2 at most.</p>