How to add each line for Column A and Column B and place the answer in Column C for each line?

I want to add across each line for Column A + Column B; and have the answer in Column C(for each line).
So A1+B1 = C1, for each row I have data. Is there a way to do this without having to type out the formula for each row?

In C1 put:


Then click-and-drag down Col C the “handle” in the lower right corner of the C1 cell.


The column will populate correctly, i.e.:

... etc.

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Thank you David…works perfectly and so simple!