How to sum in excel? Mathematical calculation in excel

1. Create a new excel file, as shown in the following figure.

2. Input a few rows of data at will, and then enter "= SUM ()" 3 + 5 on the top, and the result is 8.

3. You can also select a table and click fx

4. If we find SUM in the window, SUM is the SUM.

5. Then, you can enter a cell or select a cell box area such as B1 and C1.

6. Then the A1 result is 8.

7. If you click an error, you can double-click the edit button and the content of number1 and number2 will appear.

Friendly reminder: If you select a column in the table and we only need to select it, then the sum of the numbers you selected will be automatically calculated in the excel status bar.