1, turn on the computer, find the excel spreadsheet software on the computer, click Open, and operate as follows.

2. Then switch to the Formula tab in the toolbar and click the Insert Function command. The operation is as follows.

3. Then choose the categories of mathematics and trigonometric functions, and choose the product function. The operation is as follows.

4. Then you can enter the multiplier we want to calculate in the parameter column, such as 10*5 here, as shown in the figure.

5. After clicking OK, you can see that the calculation score of 10*5 is 50, and the calculation result is correct. As shown in the figure.