How to add two measures?

Moring all,

I have two measures in my current project and I cannot get them to sum together no matter what I do.

I have tried the following combinations:

1 - SUM(Number 1) + (SUM Number 2)

2 - SUM (Number 1 + Number 2)

3 - Number 1 + Number 2

Nothing seems to work.

I looked at the description of the number and both appear to be

Any ideas?

Thanks,

Scott