1. First open the document we need to calculate.
2. Take the following figure as an example, enter = in C3, and click the cell to be added, as shown in the figure.
3. Click Enter to get the result of 25. The same is true for subtraction, just change "+"to "-".
4. If multiplication is required, enter = in the required cell, and take this figure as an example =A2*A3.
5. Click Enter to get the result of 182, and division is the same. Just change "*" to "/".