Curated OER
How Do You Simplify an Expression Using the Order of Operations?
Simplify an expression by following the order of operations. Some already know the acronym PEMDAS. But that often gets a little confusing. The teacher demonstrates three steps to simplifying an expression.
Curated OER
What Are Some Words We Use To Write Inequalities?
Prepare your learners to comprehend word problems that involve different types of inequalities. This tutorial provides an overview of the common phrases used to describe compound inequalities and absolute value inequalities. With this...
Curated OER
What are Inverse Operations?
Explore inverse operations. Video viewers watch as a teacher shows how to "undo" an operation by using the opposite operation. By the end, learners should grasp that addition is the opposite of subtraction and division is the opposite of...
Curated OER
How Do You Use a System of Linear Equations to Find Coordinates on a Map?
It seems like a pretty complicated word problem in which Batman is trying to locate the Riddler. The instructor does a good job of setting up the two equations that will help Batman locate the Riddler. Two equations? Yes, a system, and...
Curated OER
What's the Subtraction Property of Equality?
A definition of the subtraction property of equality, this video could be used to introduce your class to the concept. Complement your lesson, or send learners home with the link to the video for further study.
Curated OER
What's the Quotient of Powers Rule?
What's the definition of the quotient of powers rule? Don't confuse this rule with the power of a quotient rule. This quotient of powers rule is quite simple in that you can just subtract. Wow! Take the power from the numerator and...
Curated OER
How Do You Subtract a Positive Number from a Negative Number?
Subtract a positive number from a negative number. Switch the signs, add the terms, use absolute value, but leave the first negative outside. Confusing? Watch the instructor explain the steps to learn this method.
Curated OER
Finding Range
What is range and how do you find it? The range is the difference between the largest number and smallest number in a data set. Duane explains that to find the difference you simply subtract. A short, sweet, and effective tutorial.
Curated OER
Subtracting Whole Numbers - Math Help
Subtracting three-digit whole numbers is as easy as following along with this video. You'll discover that you can borrow a ten from the tens column if you need to. Academic vocabulary is used throughout.
Curated OER
Basic Math: Lesson 6 - #10 - Subtraction of Fractions
This is a full lesson created to assist learners in subtracting mixed numbers and fractions. The instructor speaks quickly and fails to explain his thinking completely. He refers to LCD, completes problems involving negative numbers, and...
Curated OER
How to Teach Kids Subtraction
Drawings, manipulatives, and household objects are great tools to use when teaching young learners how to subtract. This teacher tutorial describes solid practices for teaching first graders basic subtraction.
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 4)
Use the Singapore math methods to work through simple problems. Visual representations of word problems allow viewers to start making predictions and estimating the answers. This is a good way for class members to use various methods to...
Curated OER
What's the Subtraction Property of Equality?
A quick definition of the subtraction property of equality, this video could be used to introduce your class to the concept. Complement your lesson, or send learners home with the link to the video for further study.
Curated OER
What Are Some Words We Use To Write Inequalities?
Prepare your learners to comprehend word problems that involve different types of inequalities. This tutorial provides an overview of the common phrases used to describe compound inequalities and absolute value inequalities. With this...
Curated OER
What are Inverse Operations?
Explore inverse operations. Video viewers watch as a teacher shows how to "undo" an operation by using the opposite operation. By the end, learners should grasp that addition is the opposite of subtraction and division is the opposite of...
Curated OER
How Do You Subtract Mixed Fractions with the Same Denominator?
There are many ways to subtract mixed fractions. The teacher demonstrates one method of how to break up the mixed number and subtract the whole numbers apart from the fractions. Once that is complete she puts the whole number and...
Curated OER
How Do You Subtract Polynomials?
How the heck do you subtract polynomials? Well, watch the instructor and listen closely as she explains just what to do to subtract polynomials.
Curated OER
How Do You Rewrite Subtraction as Addition?
A quick look at how to write a subtraction as an addition problem. The first value stays the same and the second value becomes the opposite value which is added to the first.
Curated OER
How Do You Subtract a Positive Number from a Negative Number?
Subtract a positive number from a negative number. Switch the signs, add the terms, use absolute value, but leave the first negative outside. Confusing? Watch the instructor explain the steps to learn this method.
Curated OER
How Do You Add and Subtract a Bunch of Numbers with Different Signs?
So you have an expression of positive and negative numbers and you want to add and subtract them. Do you do the operations in order that they are written? Do you combine some? Do you move them around? Do you change their signs? The...
CK-12 Foundation
Ck 12: Adding and Subtracting Mixed Numbers Word Problems
[Free Registration/Login may be required to access all resource tools.] CK12- Adding and Subtracting Mixed Numbers - Word Problems is a video tutorial. [2:21]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Why Borrowing Works
This video shows subtraction of numbers up to four digits, and a recap of borrowing and regrouping. Practice problems are available. [8:34]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Level 4 Subtraction
This video teaches subtraction of up to five-digit numbers using borrowing or regrouping. Practice problems are available. [8:47]