Add a square root symbol — also known as a radical sign — to a Microsoft Word document by using the program's AutoCorrect feature, inserting a symbol or typing an Alt code.

## Type an AutoCorrect Keyword

Word, like all other Microsoft Office programs, comes with a spell checker called AutoCorrect. In addition to checking for typos, AutoCorrect can also turn a series of predefined keywords into math symbols. For example, insert a square root symbol in Word by typing **\sqrt** in the document, followed by a space. Upon pressing the space bar, Word automatically turns \sqrt into a square root symbol.

### Tip

- If your default font does not include the square root symbol, switch to the Cambria Math font before inserting the root square symbol by selecting
**Cambria Math**from the Font drop-down menu in the Ribbon's Home tab. - AutoCorrect keywords are case-sensitive.
- By default, AutoCorrect only recognizes math keywords when typed inside an equation. To insert a math symbol such as a radical sign outside of an equation, open the
**File**tab and click**Options**. Select**Proofing**from the sidebar and click the**AutoCorrect Options**button. Tick the**check box**next to**Use Math AutoCorrect rules outside of math regions**.

## Insert a Square Root Symbol

## Step 1

Open the **Insert** tab and click the **Symbol** button. Select **More Symbols**.

## Step 2

Select **Mathematical Operators** from the Subset drop-down menu and double-click the **radical sign** in the list of available symbols to insert it in your document.

## Type an Alt Code

By typing specific codes known as Alt Codes on your keypad, you can insert mathematical symbols into your Office documents.

### Tip

- You can only use Alt codes for mathematical symbols in Office applications.
- If your computer does not have a keypad, you cannot type Alt codes.

## Step 1

Press the **Alt** key and hold it down.

## Step 2

Type **8730** on your keypad and release the **Alt** key. Word then inserts a radical sign in your document.

### Tip

Use the **8731** and **8732** Alt codes, respectively, to insert a cube root or fourth root symbol.