Answer:
Click the AutoSum button on the Standard toolbar, then press ENTER
Step-by-step explanation:
Excel offers a range of options to perform various mathematical operations. When numeric values are being inputted into cells, either columns or rows, the AutoSum function which is located in the home Taskbar allows for a very fast addition of the total values in the column or rows. Once the cell after the last cell value is selected, the AutoSum function is selected and the ENTER button is pressed, this will use the sum function of excel to quickly provide the total sum of all the values in the column.