.
The operation of adding a sequence of numbers; the result is their sum or total
Sum(number1, [number2], [number3], [number4], ...)
Will calculate total value of parameters n1, n2 etc
Adds all the numbers in a range of cells.
| Column1 | Column2 | Column3 | Column4 | |
| Row1 | 2 | 3 | ||
| Row2 | 8 | 7 | ||
| Row3 | ||||
| Row4 | ||||
| Row5 | ||||
| Row6 |
