# How to write a power or an exponent (little number over another number)

You want to write numbers with powers (example: 10 to the power of 6 = 106 ) on your keyboard, in Word or in another word processing software ? To do so, it will depend on the power used:

## 1. To make the symbol "squared" (ex: 10 squared: 10²)

To write "squared", you can press the key located just below the Esc key (the key at the top left of your keyboard), otherwise you can also press the Altkey (to the left of your Space bar) + "253", then release the Alt key.

## 2. To make the symbol "cubed" (example: 2 cubic meters: 2m³)

To write "cube", you can press the " Alt " key (to the left of your Space bar) + " 252 ", then release the "Alt" key.

## 3. To make the powers or exponents greater than 3 (example: 10 to the power of 4 or 10 to the power of 5 : 10 4 or 10 5 )

Above the power "3", there is no keyboard shortcut available, it will depend on where you want to write your power or your exponent:

• In Microsoft tools (Word, Powerpoint, Outlook, etc.): The easiest way is to select the figure to be superseded then to use the following keyboard shortcut : Ctrl  +  Shift ⇧ + =  (ie the key "+ =" to the left of the Return key) .
• Example: 10 to the power of 8:
• We write 108 , we select 8 and we do the combination  Ctrl + Shift ⇧ + =  → 10 8

• In OpenOffice : Same method but with a different combination: Select the number to put in superscript or in power then perform the key combination :  Ctrl  +  Shift ⇧ +  P

IMPORTANT : Note that you can also use this method to write letters by superscribing as for the abbreviations of first : 1st or second : 2nd . This technique works will all letters or symbols.

Conversely, if you want to put the number or letters at the bottom, as for typical chemical formulas: H2O, you just have to type:

• Ctrl + = in Microsoft tools (Word, Excel, Powerpoint, etc...)
• Ctrl + Shift ⇧ + B in Open Office.

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