How to make SUM(A+B) without defining the row number?

Question

I have in Excel a whole column field, where I have to set

for row 2: SUM(A2+B2),

for row 3: SUM(A3+B3)...

Is there a fast way to set it to the whole column without having to insert it one by one in the fields?

Something like SUM(A#+B#), where # automatically fills with the current row and number, so I can set the whole column automatically.

---

Also, how do I reference one worksheet in another worksheet?

Let's say I have a worksheet dates and worksheet times. I want the dates to appear in a field in the times worksheet, something like VALUE(dates.A2) in a field of times.

Answer 1

Place the formula in C2, =SUM(A2+B2) . Then move the cursor (via mouse) to the bottom right-corner of the cell. When you see the cursor change from the "fat-plus" to the "thin-plus", double-click.

Column C will immediately populate with formulas with the proper reference adjusted.