PASS: The right hand moves past the left hand.
Your right hand (or left hand if you are left hand dominant) moves. The
left hand doesn't move (stays stationary).
Sample sentence:
Have you passed trigonometry? = T-R-I-G YOU FINISH PASS YOU?
Notes:
Regarding the sign "trigonometry" in the practice sentence:
Realistically, if there is sufficient context (if we've been talking
about math) I just spell T-R-I-G. It is good to know both
versions (the initialized "MATH" version using "T"-hands, and the
fingerspelled version.