Math: Negative and Positive Numbers
These sites introduce students to negative and positive numbers and the order of operations. Learn how to add, subtract, multiply, and divide positive and negative number. Includes interactive quizzes, games, worksheets, and a lesson plan.
Grades
 4,
 5,
 6,
 7
Links

Math League: About Positive and Negative Numbers
Choose topic area. Each link has text explanation and lots of examples.

Numbers: Positive & Negative
Adding positive/negative numbers. Text and examples with a quiz at the end. Answers are there too.

Positive and Negative Numbers
Learn about negative and positive numbers. Select links at the top to learn about addition, subtraction, multiplication, and division of numbers. Click on the "Order of Operations" link at the bottom of the page to read rules and view examples of calculations. Includes quizzes.

Order of Operations Example
A very simple step by step explanation of order of operation. NOTE: The site Includes ads.

Order of Operation
Here is an interactive quiz to test arithmetic knowledge.

FunBrain Number Line
You decide the difficulty level. FunBrain gives you a problem and you choose the answer. Interactive. NOTE: The site includes popup ads.

Flash Cards: Negative Numbers!
Flash cards with Negative numbers. Add, subtract, multiply, or divide online.

Order of Operation
A good tutorial with online quizzes. Click on tutorial to begin. A new window will open, scroll down to problems.

AAAmath: Order of Operations
Order of operation games/quiz. Read the instructions, click on practice or play at the top. Decide conditions for play, then start. Fun interactive game.

FunBrain: Operation Order
Choose order of operations correctly to succeed in the online game. Select between easy, medium, and hard levels. NOTE: The site includes popup ads.

A+ Math Worksheet: Order of Operations
Math problems to teach kids the order of operations. Answers provided. NOTE: The site includes ads.

Positive and Negative Numbers Facts
This site teaches students basic rules of math operations with negative numbers such as adding, subtracting, multiplying and dividing. NOTE: The site includes popup ads.

Order of Operations: Mystery Picture Game
Solve problems and uncover hidden picture. Click the "Next" button to begin the game. NOTE: The site includes popup ads.

Mystery Picture
This is an interactive game solving equations using order of operation with negative numbers. NOTE: The site includes popup ads.

edHelper: Order of Operations: Printable and Worksheets
Select among these of worksheets by type of operations and digit numbers.

Addition and Subtraction of Signed Numbers
Here is a lesson plan with inclass activities designed to help kids better understand how to work with negative and positive numbers.