A function would make the process much faster. Functions are predefined formulas that Excel has in its memory. Instead of typing in the entire series, you can enter the starting and ending value, and Excel does the rest. A function is a built-in mathematical operation, such as addition and subtraction. Autosum Button Instantly sums all of the cells above or to the left of the cell the cursor is in.
All functions have a predetermined format.
Clicking on this button allows you to browse all available functions. Steps Action Results 1. Move into cell C9. Prepares for formula calculations. Adds the cells and places the value in C9 .