Increase your vocabulary a little each day. Drill new words and definitions as part of your daily routine. Do crossword puzzles and word finders. A 200-point difference on the test can be achieved if you know the meanings of more words, allowing you to eliminate more wrong choices on multiple-choice and reading passages.
Master once and for all one or two mathematics concepts that you have skipped over in the past. Memorize formulas that you plug in on test day, and eliminate having to scramble to recall strategies. Underline key words in math word questions to break down and simplify. Guess rather than leave an answer blank.
Practice writing an essay using a timer and working methodically to include an introduction, body and conclusion. Have transition words and phrases such as, on the other hand, and otherwise, mentally handy to keep your essay flowing smoothly. Outline your thoughts. Needless points are subtracted when you ramble and do not follow an essay format.
Get plenty of rest the day before the SAT and eat a nutritious balanced meal. Dress in layers to put on or take off outer garments depending on the temperature in the test room. The SAT is a long test. You can lose concentration and miss three or more questions in each section, which amounts to 200 points if you are not mentally alert.