Apps for word and text processing software that come with Mac OS X have a method for creating superscripts: an elevated font style frequently used in exponents in math functions and scientific symbols, and to refer to footnotes from the main body of a page. With slight variations, the superscript technique applies to Pages, Notes and Stickies.
Start the Pages app by clicking its icon in the Dock.
Choose a blank document and enter some text in it.
Highlight the text you want to change to superscript.
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Click the Format menu, select Font, click Baseline, then click Superscript. Pages converts the highlighted text to a superscript.