How to Make Sub Letters on Microsoft Word. Format letters and numbers as subscripts in Microsoft Word 2. Hundreds of keyboard shortcuts are available in Office, but these are the most important ones you should know because they will save you a lot of time. Tons of free teaching, revision and learning material. Subscript On Microsoft Word 2007' title='Subscript On Microsoft Word 2007' />Mathematics or Chemistry add in installed. Subscript letters and numbers appear slightly lower than the rest of the text, while superscript letters and numbers appear slightly higher than the text. You can make subscript or superscript letters or numbers by using the buttons in the Font group or by using keyboard shortcuts. Install the Mathematics or Chemistry add in to write complex equations and formulas. Kalawini. StockGetty Images. Type the formula into the Word document and then select the letters or numbers you want to position slightly lower than the text on the line. The Theory Of Corporate Finance Tirole Pdf here. To select several letters, hold Ctrl and select each one. Click the Subscript button in the Font group on the Home tab to make the letters subscript. Press the Superscript button to make them superscript. Alternatively, use the Ctrl or Ctrl Shift keyboard shortcuts for subscript or superscript respectively. To undo the changes, press the keyboard shortcuts again or press Ctrl Z. Save the document by pressing Ctrl S.