You can add a superscript or subscript in Google Docs by selecting text and using the Format menu or through keyboard shortcuts.

How To Add Emoji & Symbols To Superscript in Google Docs If you want to add a symbol or an emoji to your superscript, again, this is pretty easy with Google Docs. If you’re working on a science paper, ...

For math, science, or even a footnote, here’s how to superscript in Google Docs. Learn how to apply the superscript format on the web and in the mobile app.

You can add a header or footer in Google Docs from the 'Insert' menu. Google Docs automatically adds superscript numbers to your document when you insert a footnote in the document footer.