showing up to take a test

<p>I am already signed up for the Spanish test in Dec and want to retake the math ic. Can I take the math w/o having registered for it? Do i pay on the spot? Will I be able to retrieve my math score online w/ the spanish score?</p>

<p>Thanks</p>

<p>I believe that you can sign up for more and they'll mail you the bill. I think my friend is doing that to retake another SAT II test</p>