View image, showing additions of 10, 20 and 30.
Select the cell where you want the result to appear in this example as cell C6. Then type in cell = sign in, now choose first cell C3 then type “+” sign then choose second cell C4, then type + and third cell choose C5. Now press enter key, you will get the sum of these three numbers.
The red arrow is showing the result of addition. See the image:
