ClassFlow
Class Flow: Rational Numbers
[Free Registration/Login Required] Using a number line, the terms whole numbers, rational numbers and integers are defined positive and negative numbers are discussed.
New York Times
New York Times: Steven Strogatz on the Elements of Math Series the New York Times
[Free Registration/Login Required] On this site, Cornell University mathematics professor, Steven Strogatz, shares his 15-part series of columns on the elements of math. He investigates topics ranging from negative numbers to subtraction...
OER Commons
Oer Commons: The Effects of Positive & Negative Numbers
Seventh graders explore what happens to a hot air balloon when they add or remove units of weight or heat. This activity is an informal exploration of addition and subtraction with positive and negative integers.
Khan Academy
Khan Academy: Practice: Adding Negative Numbers
Practice adding one-digit positive and negative numbers.
Khan Academy
Khan Academy: Dividing Negative Numbers Review
Summarizes the rules for dividing with negative numbers, along with examples, and presents three practice questions.
Khan Academy
Khan Academy: Multiplying Negative Numbers Review
Summarizes the rules for multiplying with negative numbers, along with examples, and presents three practice questions.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Division Cards: Fill in the Blank
Students type the correct positive or negative number to complete the division problems on these interactive flashcards. The problem changes color when the correct number is typed.
OnlineMathLearning.com
Online Math Learning: Adding & Subtracting Positive & Negative Decimals
An interactive worksheet for practice in the addition and subtraction of decimals with positive and negative signs.
OnlineMathLearning.com
Online Math Learning: Multiplying and Dividing Positive & Negative Decimals
An interactive worksheet for practice in the multiplication and division of decimals with positive and negative signs.
Mr. Martini's Classroom
Mr. Martini's Classroom: Number Line With Negative Integers
Students identify, compare, add, subtract, and multiply integers using a number line.
Wyzant
Wyzant: Simplifying Multiple Signs
A review of the rules of simplifying expressions that contain multiple positive and negative signs. An online worksheet is available for practice.
ABCya
Ab Cya: Zero Sum
Welcome to Zero Sum, a fun math-puzzle game! Drag the tiles over the target numbers to reduce their values to zero. Be careful to make sure that none of the target numbers get reduced below zero. If you get stuck, use the reset button to...
Cool Math
Coolmath: Coolmath4kids: Orbit Integers
Add positive and negative numbers in this multiplayer space race!
Cuemath
Cuemath: Integers
The term "integer" was adapted in Mathematics from the Latin word "integer", which means intact or whole. Integers are very much like whole numbers, but they also include negative numbers. This article explains the properties of integers...
ClassFlow
Class Flow: Positive and Negative Numbers
[Free Registration/Login Required] This lesson is an early introduction to positive and negative numbers.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Cards
Students multiply positive and negative numbers on these interactive flashcards. The problem changes color when the correct product is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Cards, Fill in the Blank
Students type the correct positive or negative number to complete the subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
ClassFlow
Class Flow: Negative Numbers
[Free Registration/Login Required] In this flipchart students apply their knowledge of integers to combine positive and negative integers and locate their position on a number line.
ClassFlow
Class Flow: Number Sense Integers
[Free Registration/Login Required] This flipchart will help students understand positive and negative integers and use them in computations and includes Activote questions for assessment.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Multiplication Flashcards
Students multiply positive and negative numbers with these interactive flashcards. The problem changes color when the correct number is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Division Cards
Students practice dividing positive and negative numbers with these interactive flashcards. The problem changes color when the correct number is typed.
Mr. Martini's Classroom
Mr. Martini's Classroom: Negative Number Subtraction Flashcards
Students solve positive and negative number subtraction problems on these interactive flashcards. The problem changes color when the correct number is typed.
National Council of Teachers of Mathematics
Nctm: Illuminations: Volt Meter
As you put the different type of batteries on the volt meter pay attention to the voltage equations in the table. See how positive and negative numbers interact.
PBS
Pbs Kids: Cyberchase: Space Coupe to the Rescue
This interactive game allows users to practice with positive and negative numbers.