What's the Easiest Way to Get Your SAT Score Up a Couple Points? (From Quora).

https://www.quora.com/What-s-the-easiest-way-to-get-your-SAT-score-up-a-couple-points

​I’m not sure what you mean by “a couple points,” since the minimum increment is 10 points on the SAT, but I assume you mean by a small amount. I’d say the easiest way is to study the grammar for the writing/editing multiple choice section. Make sure you know the rules regarding “who” and “whom” “he/she/they” “him/her/them.”
Memorize the formulas in the little box before each math section, so you don’t have to spend time looking at them when you’re taking the test. Know the difference of squares (a+b)(a-b), as well as the binomial expansions for (a+b)(a+b) and (a-b)(a-b). Know your squares from 1 to 20. Know the properties of transversals, circles, and squares. Know the sum of the internal angles for a polygon with n sides = (n-2)*180.
Practice the reading and read the vocabulary section of Barron’s SAT or a similar SAT book. Practice all the SAT questions in general. Take a practice SAT in the actual time you’d have on the test.