Art of Problem Solving
Subtraction and the Distributive Property
There's got to be a better way. Scholars learn that the distributive property does work with subtraction and not just addition. Using that fact, the video shows how to find the product of two numbers by rewriting a complicated number as...
Art of Problem Solving
Subtraction Problems
Subtraction does not work with the commutative property ... or does it? Confronted with a difficult problem, the narrator realizes that by writing the subtractions as adding a negative, he can rearrange the problem. Pupils learn that as...
Virtual Nerd
How Do You Subtract a Negative Number from a Positive Number?
Subtracting an integer is as simple as adding the opposite value. Watch this video to see an example of how to change the signs and then add the two integers. Use this as a review after you have taught this valuable skill to your middle...
Math TV
Math tv.com: Positive and Negative Numbers: Order of Operations
Several video demonstrations offer help with using order of operations to simplify expressions.
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Associative Law of Multiplication
This video shows the associative law of multiplication by grouping numbers in different ways. Practice problems are available. [2:15]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Introduction to Order of Operations
This video introduces the concept of order of operations with several examples. Practice problems are available. [9:40]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Order of Operations
This video demonstrates the order of operations in a numerical expression. Practice problems are available. [9:40]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: More Complicated Order of Operations
This video explores more advanced order of operations problems in numerical expressions. Practice problems are available. [9:40]
Math Playground
Math Playground: What Is Pemdas?
This video explains the acronym PEMDAS and how it relates to the order of operations when solving an equation.
Khan Academy
Khan Academy: Multiplication Fun: Basic Multiplication
This video starts with a basic review of addition on a number line, followed by introduction of multiplication as grouping and repeated addition.
Khan Academy
Khan Academy: Multi Digit Multiplication: Example: Two Digit Multiplication
This video shows how to round and then multiply two numbers in the context of solving a real-world problem.
Sophia Learning
Sophia: Basic Math Properties
This video lesson introduces and provides examples of order of operations and basic math properties including associative, commutative, and distributive.
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.
Mucho Math
Algebra2go: Addition Techniques
Students are shown how the associative and commutative properties can help with basic addition problems.
Khan Academy
Khan Academy: Order of Operations: More Complicated Order of Operations Example
This video explores more advanced order of operations problems in numerical expressions.
Mucho Math
Algebra2go: Order of Operations
Order of Operations is presented using only four categories. PEMDAS is not mentioned.
Curated Video
Algebra2go: Multiplication
Multiplication is demonstrated as repeated addition. Patterns within multiplication tables are revealed as addition and subtraction problems.
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: Distributive Property in Arithmetic
Gain a basic understanding of the distributive property in arithmetic through this easy to understand video tutorial. Additional resources are available as part of a paid subscription service. [10:06]