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To type the exponent number in a Word document, go to "Format", click on "Font", and then go down and click on "Superscript" in the Effects area. Now it is ready for the exponent to be typed in. When you are done, go back and uncheck the "Superscript" box, or it will continue to express what you type as an exponent.
quiltlover     How-To Expert
Then again, this answer might help you...
Typing exponents in a word document can be easy, especially when using Microsoft Word. Type the letter normally then you want to highlight the number that is to be used as the exponent. Open the font window and check the "superscript" effect. Then click on ok. The other option would be to use the "^" symbol between the numbers. For more information see here: ;
MsTigrLadi     How-To Expert
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