Can somebody help me please?
I.
I'm an Excel newbie.

And I want to have one master worksheet with all of my income, my expenses,
and other calculations. I then want to have multiple other worksheets with
rent calculations for different potential apartments.

I want to be able to refer to the master worksheet calculations in the
individual apartment worksheets. I think it is done with "Insert- define".
Am I right? And if so, how do I do this?

Thanks!

Ross