How to improve a 570 math

<p>I just got my SAT scores back today. I ended up getting a 1890 which is decent but it can get a lot better. I got 690 CR, and 630 Writing. For some reason the SAT math is challenging. I've always considered math my best subject. I'm past Algebra 2. I took MAC1105 for dual enrollment and got an A in the class. Are there any good online sources that will help me improve my math section. I can't afford to buy any books and I just missed a full scholarship in my state by 20 points.</p>

<p>You can't afford to spend $20 on the College Board Official SAT Study Guide?? Really, that is the only source you need.</p>