:heavy_plus_sign:The sum function in Excel is widely used and allows you to quickly add up a range of numbers.
:arrow_right:You can use the sum function to add up complex formulas and combine it with other functions to make it even more powerful.
:1234:The sum function can be typed directly into the cell, used with the functions dialogue box, or with the AutoSum button.
:arrow_down_small:Excel allows you to copy and fill the sum formula down quickly using the autofill handle.
:warning:Pay attention to the green triangles in the corner of cells, as they indicate warnings or errors that need to be addressed.