<p>I heard that you can take one subject test and then, if you are feeling good, take two other tests which would be charged afterwards.
So what is the economically and practically difference between registering to several tests and registering to only one test and then taking others.</p>
<p>i really do not recommend to take more than two on one day because if you don’t do well you must cancel all of them, not just one!</p>
<p>There is no economical difference. If you take more than the one (or two) that you signed up for initially, you will just be billed later for it/them.</p>
<p>Practically speaking, I would strongly recommend preparing for the two or three tests you plan on taking before you apply to college. Don’t bother taking any more than four. Additional ones would be a waste of your time and no one really cares. In all honesty, I state four because some people have graduation-associated requirements with SAT II tests. Most people successfully apply to colleges with having taken only two. Anyway, it is possible to take two or three on one date without a problem if you are ready. However, I suggest that you spread them out over multiple dates. This strategy allows you to spread out a bit more and generally be more confident when you take each one. Mark up a calendar and know when to study for what, and definitely don’t forget to factor in dates you plan on taking the SAT I. Allow yourself some buffer time (i.e. possible test dates you keep open just in case) because I know people who intended on taking the SAT I/II on some date but ended up cancelling because they found themselves on test day with insufficient prep time. Good luck!</p>