So I took tests from Collegeboard's blue book

<p>Math II - 790
US History - 780
Chemistry - 730</p>

<p>I made several careless errors on all. Are those scores accurate predictions or are those tests easier than the current tests, as I have heard?</p>

<p>I don't know how to improve my Chemistry score; some questions seem so random and tricky. Any advice?</p>