In Khan Academy, when I do reading/writing practices I usually get zero wrong in every section. When I do math practice, I get a few wrong each section.
I took a few Princeton Review SAT practice tests, and I average 30 questions wrong on R/W and 5 questions wrong on both math sections.
How are these vs. the real SAT? There are some hard math concepts on Khan Academy but I don’t seem to see them in the Princeton Review. What should I focus on? Hoping for 1600.
Fake (third-party) tests cannot be used to predict scores. They may be helpful for practice but not for scpring.
The only practice tests you should take are from the red book made by ACT. ACT does not really involve much knowledge of advanced concepts, but rather required critical thinking and speed. I have found the ACT Prep Black Book really helpful in understanding the little tricks to improve your score. Understanding different techniques ACT implements in order to trick you along with practicing on the ACT practice tests, my math score is averaging 4 points higher, science 1, writing 2 and reading 1 bringing my average score to a 33.