Pull out the basic information
(a) 30 students in ME1. How many ways can a class of 10 be formed?
For some things like trig etc. ofc you'll have to write the full question, but I like doing it this way
I believe its worth it, and much easier to look back on.
Like we were doing sequences and series recently, and instead of writing
What is the 9th term of the sequence "1, 2, 4, … "
Just write "1, 2, 4 ... T_9"