Calculation Problem

Is there a way to sum a series of numbers without having to add each one individually?

Right now, I'm doing my calculation as:

Round (NumericField1[3], NumericField1[4], NumericField1[4], NumericField1[4]) etc.

In Excel, it would be like this:

SUM (NumericField1[3]...NumericField1[15])

(I posted this question a couple years ago, but never did get it worked out)