# What Does "Minus" Mean?

### Understanding the symbol

In this section, you will look at algebraic expressions and see how they can be interpreted using an Expression Mat. To achieve this goal, you first need to understand the different meanings of the “minus” symbol, which is found in expressions such as 5 − 2, −*x*, and −(−3).

What does “ – ” mean? Find as many ways as you can to describe this symbol and discuss how these descriptions differ from one another. Share your ideas with the class and record the different uses in your Learning Log. Title this entry “Meanings of Minus” and include today’s date. After you have done this, look up the dictionary entry below and compare your notes with this definition.

http://www.thefreedictionary.com/minus

When you have finished, click on the button below for a quick review of algebra tiles.