How many words should i memorize!!!!!!!!

<p>I DO NOT understand how the critical reading section works and it is sooo frustrating.
Ok so there are 19 vocab based questions of which i can only do about 10 right however i have been memorizing vocab and i know its not a lot but i have about a good 440 words which i think is pretty good so i don't understand how these words are not showing up when i got them from apparently the best sources like Direct hits and others like them......
SO how many words do i exactly need, I have calculated that if i keep memorizing more lists i can get about 1700 total by my last sat which would be at the end of junior year(june). So would that be enough to get about 15/19 of them right how many did you guys who got 700+ memorize because i know that means you got almost all of the 19 right PLEASE HELP i really need to increase my Critical Reading Score from low 600's to atleast 650</p>

<p>BUMP</p>

<p>Some books for vocab:
-Direct Hits
-SAT Vocab Cartoons
Choose 1 and stick with it.</p>

<p>Apps/Websites:
-Quizlet - Students have already pre-prepared SAT vocab flashcards. Find them, study them and test yourself using the mini-games. This is great for on-the-go studying.
-Mindsnacks - found on the Apple App store; you can try the first lesson/set of mini-games for free. If you like it, get the other 24 for about $5.
-Test Your English Vocabulary - Android app - just drills you on vocab with 10 question quizzes; great for on-the-go practice rather than studying</p>