Instructional Video4:03
Khan Academy

Multiplying Fractions and Whole Numbers: Mixed Number Answer, Pre-Algebra

For Students 5th - 7th
Here is a great video explaining multiplying a fraction by a whole number. Sal shows students how to put a whole number over 1 to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
Instructional Video4:27
Curated OER

How Do You Solve a Word Problem Using an Equation Where You're Multiplying Fractions?

For Teachers 8th - 10th
How tall is tall? Well, here's a word problem that when the solution is found will show how tall, tall is. Two years ago, Brad was five and a half feet tall, which was only 2/3 of how tall he is now. Oh my, he is going to be really tall....
Instructional Video1:36
Curated OER

How Do You Multiply and Divide Numbers with Different Signs?

For Teachers 5th - 8th
After multiplying integers that have positive and/or negative signs, how is the sign of the product determined? This is a foundation skill that your pupils should know like the backs of their hands. If you need to reinforce the rules of...
Instructional Video10:18
Khan Academy

How to Rationalize a Denominator, Exponent Expressions and Equations, Algebra I

For Students 7th - 11th
"Sal, why do we care? Why must we rationalize denominators?" Acknowledging these (possibly pleading) concerns, Sal explains the reasons behind rationalizing a denominator before demonstrating how to do it several times. Though he admits...
Instructional Video
Math TV

Math tv.com: Basic Mathematics: Mixed Numbers: Multiple Operations

For Students 9th - 10th
Students provide step-by-step solutions to math problems involving the addition, multiplication, and division of mixed numbers. In the left hand menu, click on Basic Mathematics, Mixed Numbers, Multiple Operations.
Instructional Video
Math TV

Math tv.com: Basic Mathematics: Mixed Numbers: Multiplication and Division

For Students 9th - 10th Standards
Students offer step-by-step solutions to math problems involving the multiplication and division of mixed numbers. In the left hand menu, click on Basic Mathematics, Mixed Numbers, Multiplication and Division.
Instructional Video
Virtual Nerd

Virtual Nerd: Solve Problem Using an Equation Where You're Multiplying Fractions

For Students 7th - 9th
Video tutorial shows how to take a word problem, translate it into a mathematical equation involving fractions, then solve it. [4:27]
Instructional Video
Khan Academy

Khan Academy: Multiplying Fractions Word Problem: Bike

For Students 5th
Sal solves a word problem by multiplying a fraction by a mixed number.