Why not just take the SAT math subject test?
Can you use the scores from the subject tests interchangeably with the SAT reasoning test scores for admission to programs like SET?
No, not that I've ever seen.
Thinking about it, I'm pretty sure I've read that the essay always comes first. The reason they don't want people leaving the SAT early is, I think, that they don't want them texting the answers to people taking it elsewhere. However, logically it ought to be OK for someone to enter the test late, in one of the breaks so as not to disturb others - as they haven't yet seen the paper they have no cheating opportunity. Then logically it should be possible to miss, rather than sit through, the essay section. Of course, this doesn't mean it'd actually be allowed!
