Khan Academy
Khan Academy: Negative Number Basics: Negative Numbers Introduction
This video shows how to think about and represent negative numbers using a number line.
Khan Academy
Khan Academy: Multiplying Positive and Negative Numbers
A video of basics of multiplication with negative numbers.
Khan Academy
Khan Academy: Multiplying and Dividing Negative Numbers
A video showing the rules of multiplying and dividing negative numbers.
Other
Organic Chemistry Tutor: Addition and Subtraction of Numbers
This video provides a basic introduction to mathematics, in particular, the process of addition and subtraction of positive and negative numbers using a number line or by hand. It contains plenty of examples and practice problems on...
PBS
Pbs Math Club: Adding Negative Numbers
Introducing adding positive and negative integers, additive inverses, visualizing addition with a number line, and the commutative property of addition the Math Club parodies Star Wars and Mean Girls. [5:16]
PBS
Pbs Math Club: What Is an Integer?
This episode of Math Club defines integers, explains the difference between positive and negative numbers, shows how integers are represented on a number line, and demonstrates how to determine integers with greater value. [4:30]
Other
Professor Freedman's Video Snippets Multiply/divide Integers
Professor Ellen Freedman uses this very short video to explain how to multiply and divide positive and negative numbers. She offers specific tips on how to do this and have the correct positive or negative sign for the answer.
Other
Professor Freedman's Video Snippets Add/subtract Integer
Professor Ellen Freedman uses this very short video to explain how to add and subtract positive and negative integers. She offers tips on how to keep track of whether the answer is positive or negative.
Sophia Learning
Sophia: Multiplying Positive and Negative Numbers: Lesson 14
This lesson demonstrate multiplication when dealing with a mix of positive and negative numbers. It is 14 of 17 in the series titled "Multiplying Positive and Negative Numbers."
Sophia Learning
Sophia: Multiplying Positive and Negative Numbers: Lesson 2
This lesson demonstrate multiplication when dealing with a mix of positive and negative numbers. It is 2 of 17 in the series titled "Multiplying Positive and Negative Numbers."
Sophia Learning
Sophia: Multiplying Positive and Negative Numbers: Lesson 4
This lesson demonstrate multiplication when dealing with a mix of positive and negative numbers. It is 4 of 17 in the series titled "Multiplying Positive and Negative Numbers."
Sophia Learning
Sophia: Multiplying Positive and Negative Numbers: Lesson 5
This lesson demonstrate multiplication when dealing with a mix of positive and negative numbers. It is 5 of 17 in the series titled "Multiplying Positive and Negative Numbers."
Sophia Learning
Sophia: Multiplying Negative Numbers: Lesson 1
This lesson demonstrates multiplication when dealing with negative numbers. It is 1 of 16 in the series titled "Multiplying Negative Numbers."
Sophia Learning
Sophia: Adding and Subtracting Money Values
In this lesson, students will add and subtract money values.
Khan Academy
Khan Academy: Subtracting a Negative = Adding a Positive
Explains why subtracting a negative number is in fact the same thing as adding a positive number. [1:33]
Loyola University Chicago
Math Flix: Integers and the Number Line Part 2
This QuickTime movie provides more information about the basic concept of integers, positive and negative numbers, using the number line. As you watch and listen to the teacher and student interact it helps clarify the thinking behind...
Loyola University Chicago
Math Flix: Integers and the Number Line Part 1
This QuickTime movie provides an introduction to the concept of integers - positive and negative numbers. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
Loyola University Chicago
Math Flix: Integers: Three Ways to Teach Opposites
This QuickTime movie teaches three different ways to understand opposite integers - positive and negative numbers. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.