Delete all "section break" in word, then insert "section break Next Page" between the abstract and the previous page, and then set the page number. The specific operation steps are as follows:

1. Open the paper, click View in the toolbar, and then click View Outline, as shown in the following figure;

2. Click the double dotted line in the outline view, and then press the Delete key on the keyboard to delete "section break", as shown in the figure below;

3. Delete all "section break" and click "Close Outline View", as shown in the following figure;

4. Turn to the previous page of the abstract and put the cursor after the last word, as shown in the figure below;

5. Click "Page Layout" in the toolbar, as shown in the following figure;

6. Click on the "separator", as shown in the figure below;

7. Click "Next", as shown in the figure below;

8. Turn the paper word document to the abstract, put the cursor at any position, and click "Insert", as shown in the following figure;

9. Click "bottom of the page" and select "ordinary number 1" to complete the setting, as shown in the figure below.