I am not the sharpest tac in the box, but I cannot for the life of me get a calculation. Maybe someone can help?

I would like to have a field where I can enter multiple numbers that will add together than give me the average of those numbers.

example: 1 2 3 = 6 and the average is 2.

Can this be done in one field or do I need a field that will sum the numbers and another field that will do the average of the sum?

Thanks for any help!

No, what I am saying is that whoever is doing the data entry should press tab in between the numbers to move the cursor to the next portal row (or at least to the next repetition of a repeating field). Then the whole thing becomes trivial (see an attached example)