Microsoft Equation helps you add fractions, exponents, integrals, and so on to Word documents. You start building an equation by opening Microsoft Equation:

In some cases, you want to show in your Word document the number or amount in words. You can use macros, but Word proposes an easy and simple way by using fields.

By inserting a citation into your document, you tell readers that certain information in your paper is borrowed from another source. Citing a source, quoting it, or just mentioning it, is the only way to use the work of other people without plagiarism.

Suppose you'd like to add a couple more commands to the Quick Access toolbar. Also, say you're a big fan of AutoText, which lets you assign long strings of text to a couple keystrokes. You can add the AutoText button to the Quick Access Toolbar, so you can quickly create and use AutoText to collect frequently used commands.

You can create subdocuments by inserting other files into your master document.

By default, Word saves all documents in the newest format (*.docx), but you can change the default format to .doc or anything else.

You can use superimposing characters for easy and fast entering text without using Equation.

By default, Word shows document tooltips when you hover on a button, but this option can be turned off.

You can modify subdocuments, but with features. This tip contains some of these features. You can modify subdocuments using the same tools that you have used to create a master document and subdocuments. This tip describes how to use those tools to modify subdocuments. How to create a master document, see The Master Document View, and Creating subdocuments for information about creating subdocuments.

Every master document consists of regular document stuff and links to other documents. Those links can be used to pull in the information from the documents to which the master documented is linked.