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How to make a mathematical serial number?
Import the video material, select the text, input the corresponding number, and pull it to the corresponding timeline.

The method is as follows: 1. First, open the cutting software.

2. Then start creating videos.

3. Then, in the open page, import the video material.

4. Then drag the video to the bottom and click on the text.

5. Enter a number and drop down the corresponding timeline.

6. Just enter the corresponding number on the corresponding time axis.