A few of the jobs I am applying to are requesting the "Salary" for each of my previous jobs.

I've just graduated from college and only have part-time work experience so my salary
would range from year to year depending on how many hours I've worked, and one of
my previous jobs even paid a day rate, plus room and board.

My question is, do I figure out my annual salary range and state that? Or should I disregard what the generally accepted definition of salary is and put hourly wages and potentially look like I'm not smart enough to figure out my own annual earnings?!?

UGH!

Thanks in advance!!!

Or should I disregard what the generally accepted definition of salary is and put hourly wages and potentially look like I'm not smart enough to figure out my own annual earnings?!?

Either way.  Companies often base their offers on what you made in the past.  This is not to say that you have to take it or even if the question is relevant.

As you embark on your career, you do want to save every paystub or at least the year end ones.  New employers always want to know details about past employers and  this will not be the last time, you will be asked that question.