Virtual Nerd
Virtual Nerd: What Is the Opposite, or Additive Inverse of a Number
This short video tutorial explains how to find the additive inverse of a number. It provides a definition and examples of the skill.
Loyola University Chicago
Math Flix: Order of Operations Explained
This QuickTime movie provides an explanation of the order of operations. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept.
Math Mammoth
Math Mammoth: Adding Integers: Counters, Number Line, Different Signs, Rules
This lesson reviews how to add integers using counters and a number line, then models how to solve addition of several positive and/or negative numbers, and explains the rules to know for integer addition. [8:51]
Math Mammoth
Math Mammoth: Division of Integers Basic Lesson for Pre Algebra
This lesson explains how to do integer division and what the rules are for the signs when working with positive and negative numbers. [9:17]
Imagine Learning Classroom
Learn Zillion: Multiply Positive and Negative Integers Distributive Property
Learn about the rules for multiplying a positive integer by a negative integer by using the distributive property. [3:55]
Other
Algebra2go: Division With Negative Numbers
Video tutorial demonstrates the process of dividing with negative numbers. [5:11]
Other
Algebra2go: Addition and Subtraction
In this video tutorial, Professor Perez uses number lines and mathematical expressions to visually review addition and subtraction. [7:42]
Other
Algebra2go: Subtracting Negative Numbers
This video attempts to explain subtracting negative numbers using a number line while emphasizing that "taking away" any quantity from its identical self must result in zero. [6:07]
Other
Algebra2go: Additive Inverse and Absolute Value
Video tutorial reviews the concepts of additive inverse (opposite) and absolute value using a number line. [7:39]
Khan Academy
Khan Academy: Multiplying Negative Numbers
A video showing how to multiply negative numbers.
Khan Academy
Khan Academy: Multiplying and Dividing Negative Numbers
A video showing the rules of multiplying and dividing negative numbers.
Khan Academy
Khan Academy: Why a Negative Times a Negative Makes Intuitive Sense
A video showing the repeated addition model of multiplication to think about multiplying 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...
Mucho Math
Algebra2go: Order of Operations
Order of Operations is presented using only four categories. PEMDAS is not mentioned.
Art of Problem Solving
Art of Problem Solving: Introduction to Division
Video tutorial uses examples to introduce division. [7:06]
Art of Problem Solving
Art of Problem Solving: Subtraction Problems
Video tutorial uses examples to reinforce understanding of subtraction problems. [5:24]
Art of Problem Solving
Art of Problem Solving: Subtraction With Negatives Part 2
Video tutorial uses examples to explain how to work subtraction problems with negatives. [4:36]
Loyola University Chicago
Math Flix: Order of Operations in Word Problems 1
This QuickTime movie provides an opportunity to apply the order of operations to a word problem. As you watch and listen to the teacher and students interact it helps clarify the thinking behind applying this concept.
Math Antics
Math Antics: Order of Operations
Gain a basic understanding of the order of operations by watching this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [9:39]
Math Antics
Math Antics: Adding and Subtracting Integers
In this video, students can learn about adding and subtracting integers. [11:23]
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 3 Digits by 1 Digit, Regrouping 1
Multiplying 3 digits by 1 digit, Regrouping 1.
Sophia Learning
Sophia: Evaluating Multiple Step Problems
In this lesson we go through the steps of solving a multiple step problem in accordance with all of the rules of combining numbers.