# Algebra I/Content/Working with Numbers/Integers and the Number Line

Back to Table of Contents Algebra I

(Note to contributors: Please use the ^ symbol to designate exponents when you enter them in the wikibook. I will format them on the student-user interface.--HSTutorials 00:42, 17 July 2006 (UTC)

## Vocabulary

- Integer: A whole number (both positive and negative).
- Number Line: a line marked periodically with numbers
- Origin: Zero (0)

## Lesson

An integer is any number, positive or negative, that does not have a fraction or decimal point. Integers can be shown on a number line, like the one below.

This number line shows the numbers from -10 to (positive) 10. Notice the arrows on either side to show that the numbers continue in both directions even though they are not shown on the line.

## Example Problems

## Practice Games

http://www.funbrain.com/linejump/index.html

## Practice Problems

(Note: put answer in parentheses after each problem you write)