I'm currently studying music theory and this is a big gray area for me. Whenever I do practice problems and my answers are marked incorrect, I'm introduced to a lot of new concepts/rules. Some examples which I wrote down:
incomplete pulses must always be made complete before any additional rests are added
any incomplete pulses must be treated separately when adding rests
in compound time, a dotted rest is preferable when notating a complete beat
a whole measure of silence is always filled with a single whole rest
et cetera.
In short, I'm looking for some basic rules like the above for completing measures with rests.
I'm currently studying RCM Level 7 Theory. If anyone could take the time to explain some basics rules for me on completing measures with rests, it would be really helpful to me!
(Note: I have no problem with the mathematical adding rhythms to figure out how many beats need to be filled with rests part, if that makes sense.)