Curated OER
Subtracting Negatives
The teacher shows four different examples of subtracting negative numbers by leaving the first value the same and then adding the opposite of the second value.
Mathispower4u
Subtracting Integers
If you already know how to add integers, you're only one step away from knowing how to subtract. Scholars learn to subtract integers using multiple methods. First, the brief YouTube video describes how to subtract integers by adding the...
Khan Academy
Adding/Subtracting Negative Numbers, Pre-Algebra
Guiding viewers through the addition and subtraction of numbers, this video includes many tips to help new learners internalize the concept of a number line. It clarifies the relationship between positive and negative numbers, including...
Curated OER
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.
Khan Academy
Adding and Subtracting Fractions
This video shows how to add, subtract, and simplify fractions using a pie graph and an infinite blackboard. Once he has established the rule, Sal throws the viewer a curve ball with a fraction subtraction problem that results in a...
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 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 Subtract Fractions with Different Denominators?
Combining fractions with unlike denominators. Wait! You can't do that! You have to have common denominators to combine the numerator of fractions. Here's a quick review of changing the denominator by multiplying each fraction by that...
Curated OER
How Do You Add a Negative Number to a Positive Number?
Combine a negative number with a positive number. How? Follow along and see the instructor explain what to do.
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 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...
Math Meeting
Adding and Subtracting - Negative Numbers
Here is a video that adds visual context and a steady stream of step-by-step instructions for adding and subtracting negative integers, with the help of a number line.
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...
Curated OER
How Do You Add a Negative Number to a Positive Number?
Add a negative number with a positive number. How? Follow along and see the instructor explain what to do.
Northeast Arkansas Education Cooperative
Adding and Subtracting Polynomials
Algebra tiles help pupils understand many different algebra topics. The video explains the process of adding and subtracting polynomials using the tool. Seeing the terms as individual tiles helps learners understand the idea of a...
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...
Mathispower4u
Solving Two-Step Equations Using Integers (Example 2)
Add, subtract, multiply, or divide ... which is the right operation to use? Give your classes some insight into using these operations to solve two-step linear equation using a video tutorial. The lesson describes how and when to use...
Curated OER
How to Use a Number Line
Have your class watch this video to get a better understanding of adding and subtracting positive and negative numbers. In an easy to understand manner, the presenter explains how to add numbers, both negative and positive, using a...
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.
Mathispower4u
Solving Two-Step Equations Using Integers (Example 1)
Solving two-step equations is twice as fun as one-step equations! A thorough lesson shows the steps to solving two-step equations. Learners watch as the instructor not only explains how to use each operation but also explains why the...
Curated OER
How Do You Add Two Negative Numbers?
A very simple explanation of adding two negative numbers together. Well, it's a mathematical explanation that includes moving the negative and using absolute value. Just watch the instructor as she shows you the steps and it will make...
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...
Northeast Arkansas Education Cooperative
Polynomial Operations
This overview of polynomial operations does a solid job of summarizing how a mathematician attacks adding, subtracting, and multiplying polynomials. With particular emphasis on combining like terms and when exponents do and do not...
Scholastic
Study Jams! Addition & Subtraction Equations
Zoe is decorating a cake for her grandpa's birthday and needs to know how many more candles to add. Follow along as she explains how to set up and solve algebraic equations in this step-by-step presentation. Equations with negative...