# How to Insert an Equation in Word

## Overview

Word allows you to write, insert and edit simple to complex mathematical equations. The manner in which you do so varies depending on which version of Microsoft Word you are using. Read on to learn how to insert an equation in Word.

## Equations in Word 2003

In order to insert an equation in Word 2003, you must have **Microsoft Equation 3.0** installed. To find out whether it is installed, go to the **Insert** menu, select **Object** and go to the **Create New** tab. Look for **Microsoft Equation 3.0** in the **Object Type** box. If it is listed, select it and skip the following paragraph. If it is not listed, you will need to install it. If you do not have Office setup files on your computer, you will need to insert your Microsoft Office CD to install Microsoft Equation.

Close Word and any other Microsoft Office applications. Click **Start** and select **Control Panel**. Double-click **Add or Remove Programs**. Select **Microsoft Office** in the list of currently installed programs and select **Change**. Select **Add or Remove Features** and click **Next**. Expand **Office Tools** by clicking the “**+**” to the left of it. Select **Equation Editor** and then click **Run from My Computer**. Click **Update** and restart Word.

Once you know you have Microsoft Equation installed, go to the **Insert** menu, select **Object** and go to the **Create New** tab. Select **Microsoft Equation 3.0** in the **Object Type** box and click **OK**. The **Equation** toolbar will appear, from which you can insert or create your desired equation.

## Equations in Word 2007 or 2010

The process for inserting an equation in Word 2007 or Word 2010 is quite simple. Go to the **Insert** tab and click **Equation** in the **Symbols** group. Here you will find several options.

You can choose from a built-in equation, which you can then edit to your needs. You can select more equations from Office Online. You can also select **Insert New Equation** to insert your own custom equation.

Once you have made a selection from the **Insert Equation** menu, the **Equation Tools Design** tab will appear, providing several tools, symbols and structures that you can use.

If you wish to add your equation to the list of frequently used equations, select the equation you created. Go to the **Equation Tools Design** tab and select **Equation** in the **Tools** group. Click **Save Selection to Equation Gallery**. Type a name for the equation in the **Create New Building Block** dialog box. Select **Equations** in the **Gallery** list, add a description or other options if desired and click **OK**. The new equation will be included with the built-in equations in the **Insert Equation** menu.

For a comprehensive tutorial on creating equations in Word 2007, read Using Word 2007’s Equation Editor. The steps in this tutorial work for Word 2010, as well.