1. Select "Insert Footnotes and Endnotes" on the menu bar, quote the standard annotations of mathematics courses in the paper, and select endnotes in the pop-up dialog box.

2. Click the option button to change the numbering format to Arabic numerals and change the position to endnotes.

3. After confirmation, Word inserts the reference number at the cursor, automatically jumps to the corresponding number at the end of the document, and then adds the document according to the format of the reference description table.