Format text as superscript or subscript
A subscript or superscript is a number, figure, symbol, or indicator that is smaller than the normal line of type and is set slightly below (subscript) or above it (superscript).
Insert a superscript or subscript symbol
On the slide, select the slide where you want to add the symbol.
On the Insert tab, pick Symbol.
In the Symbol box, find the symbol you want, select it, press Insert, and then pick Close.
Apply superscript or subscript formatting to text
Select the text that you want to format as superscript or subscript.
On the Home tab, in the Font group, pick the Dialog Box Launcher.
On the Font tab, under Effects, select the Superscript or Subscript check box.
Tip You can make text superscript or subscript without changing the font size. For superscript, enter a higher percentage in the Offset box. For subscript, enter a lower percentage in the Offset box.