<p>Hey I tend to miss maybe 1 or 2 level 5 question on a typical SAT test. I heard that going through Dr. Chung's math book would help me get consistent 800s. Is this true? And where can I buy this book? It seems to only be available on Amazon... for like 300$ rofl...</p>
<p>i just bought it and yeah I got it off of Amazon. It’s seems good so far 
Hopefully its worth the investment</p>
<p>Well are the questions you’re getting wrong stupid mistakes or material you don’t know? If they are stupid mistakes you just need to be more careful and maybe go over your answers at the end of the section. If it is stuff you don’t know then pick up a prep book you already have and go to that section. There probably isn’t much you don’t know at this point if your only getting 1 or 2 questions wrong each test.</p>