Having no knowledge of the grading but having sat for each vert and lat once I'll say this...
Problems I thought I nailed, showed work, code references, and so on... I got an U on.
Problems that I was less sure on, or maybe time crunched I outlined with basic steps , code references, and min /max checks. I figured I'd fail those.... nope got a A or I on those.
Moral here .... numbers almost dont matter....to a point obviously.
But thinking and steps are everything.
Another thing I've sorta gleaned talking with people is that if you dont know a subject cold, then vague / outlining is your friend. Not a sure thing but here's an example of what I mean ...
If a problem wanted the base shear of a structure, let's pretend it had greater than 30 psf snow and some heavy floors ...
You could go thru all the ELF and accidentally forget to account for the dead and snow loads in your seismic weight...which is a fundamental miss. That may be bad.
But if crunched for time and you state:
Determine Site specific parameters per...
Determine Site class per....
Determine seismic wt per ....
Determine period, seismic design cat. , Cs, and so on...
Then you say ... bc of time you state, assume W= 150 kips or some reasonable fraction [or whatever makes sense in context] ...
You'll lose similar points for both and I'm fairly certain you'd get docked a bit harder in the first one where to were trying to give an exact solution but missed something by accident ...
So from my experience, is be detailed but there aren't points for significant digits.... for example when dealing with wind and maybe you need to do a double interpolation ... and just don't have the time, just state, typically you'd double interpolate blah blah blah... but assume worst case number. [Maybe you're between 160 and 180 in a CC table and between two different heights kind of thing.
You'll get almost full marks for skipping the tedium. The numbers are like the points in the old tv show... "Who's Line Is It Anyways" ...
My two cents... rounded to a nickel.