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.
Curated OER
How Do You Subtract Integers Using a Number Line?
There are times when you might want to use a number line to help you visually understand what is happening mathematically. Subtracting integers might be one of those times. So take a look and see which direction you need to move on the...
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...
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 Polynomials Vertically?
Subtract polynomials? Huh? First off find the additive inverse of the number you are subtracting. Next rewrite the polynomials one on top of the other. Make sure to line up the like terms and then write in placeholders. Now add the terms...
Mathispower4u
Order of Operations with Integers: a(b-(-c))+d
Breaking down the order of operations doesn't get any easier than this! Young mathematicians watch a YouTube video that explains
how to evaluate a numerical expression using the order of operations.
The expression involves integers and...
Corbett Maths
Negatives: Addition and Subtraction
There are no negatives in learning about negative numbers. Scholars review how to add and subtract integers by watching a short video. They first see how to use a number line to determine the sum or difference, then learn to apply...
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 Integers Using a Number Line?
Confused about adding integers? Use a number line to help you get a visual on which way to move according to the sign of the numbers. Negative means you move left on the number line and then of course positive numbers mean you move to...
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 Subtract Polynomials Vertically?
Subtract polynomials? Huh? First off, find the additive inverse of the number you are subtracting. Next, rewrite the polynomials one on top of the other. Make sure to line up the like terms and then write in placeholders. Now, add 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 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...
Art of Problem Solving
Subtraction with Negatives Part 2
Dive deeper into subtraction. The presenter shows two more ways to use the definition of subtraction to solve subtraction problems. Using the distributive and commutative properties, pupils learn how to solve problems such as subtracting...
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.
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...
Curated OER
What are the Rules for Using Absolute Values to Add Integers?
There are several rules to adding integers using absolute values. It can seem a bit overwhelming to remember these rules. Watch this video and learn the rules as the instructor illustrates a few examples and explains the steps involved.
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...
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