<p>I have both versions of the College Board's Official SAT Study Guide. How many different practice tests does this amount to? Also, how many official practice tests can I find online for free? Thank you!</p>
<p>10 different practice tests, I think. The 2nd edition probably reuses the ones on the 1st edition. College Board has one official online practice test, and probably more on its online course, but that, of course, isn’t free. You might be able to find some pirated ones if you know how to get them, that is.</p>