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Algebra 79 - Adding and Subtracting Complex Numbers
Addition and subtraction of complex numbers can be done arithmetically by adding or subtracting their real parts and separately adding or subtracting their imaginary parts. These operations of complex addition and subtraction can be...
Curated Video
Using Neutral Fields to Calculate with Positive and Negative Integers
In this video, students learn how to create and use a neutral field to calculate with positive and negative integers. The concept of additive inverses and zero pairs is introduced, and students are shown how to break apart zero pairs to...
Why U
Algebra 78 - Imaginary and Complex Numbers
The concept of imaginary and complex numbers was a powerful innovation that enabled mathematics to progress into previously uncharted territory. Although this concept was not entirely intuitive, extending our number system to include...
Curated Video
Subtracting Integers by Adding the Additive Inverse
In this video, the teacher explains how to subtract integers by adding the additive inverse. The lesson includes a review of the concept of additive inverses and two addition rules for numbers with the same sign and different signs.
Brian McLogan
Subtracting complex numbers
In this video series I show you how to add and subtract complex numbers. Addition and subtraction of complex numbers is very similar to addition and subtraction of polynomials where we can only combine like terms. We then want to write...
Curated Video
Adding Integers with Different Signs Using a Number Line
Review the concepts of positive and negative numbers, absolute value, and the direction of movement on the number line. The teacher demonstrates how to add integers with different signs by subtracting their absolute values and taking the...
Brian McLogan
Subtraction of real numbers both positive, 5 - 3
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Brian McLogan
How to multiply a two digit decimal from a three digit decimal
👉 You will learn how to multiply numbers in decimal form. We will work with decimals that are greater and less than one. When multiplying decimals it is important to line up the decimal point so that you keep the place values of the...
Brian McLogan
How to graph an exponential equation with a table of values
👉 Learn how to graph exponential functions involving vertical shift. An exponential function is a function that increases rapidly as the value of x increases. To graph an exponential function, it is usually very useful to make the table...
Curated Video
Adding Integers with Opposite Signs: Using an Algorithm
This video explains the concept of absolute value and how it relates to the distance from 0 on a number line. The algorithm involves subtracting the absolute values of the numbers and determining the sign based on which absolute value is...
Curated Video
Using Rational Numbers in the Real World
In this video, the teacher walks through a standardized math test question that involves using rational numbers to calculate the total change in temperature over a period of time. The teacher breaks down the problem step by step,...
Brian McLogan
Multiplying two numbers both negative, -4 . (-2)
👉 You will learn how to multiply integers from one digit to multiple digits. When multiplying it is important to understand that multiplication is just repeated addition. However with multi-digit numbers we will follow a step by step...
Brian McLogan
What are Additive Inverses
👉 Learn all about the processes and definitions for solving linear equations. You will gain a better understanding about the vocabulary and steps used to solve liner equations such as how to isolate an equation and apply inverse...
Curated Video
Negative and Positive Integers
Mr. Addit explains the concept of positive and negative integers. He plots positive and negative integers on a number line and then uses a Fahrenheit thermometer to show a practical application of positive and negative integers that we...
Why U
Pre-Algebra 05 - Commutative & Associative Properties of addition
A look behind the fundamental properties of the most basic arithmetic operation, addition.
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Subtraction of Integers
It explains to subtract two positive integers, two negative integers, to subtract one positive and one negative integers, to subtract integers on number line.
Curated Video
Adding Integers with Color Counters
Understand how to add integers using color counters. By combining the counters and canceling out zero pairs, students can easily visualize and solve addition problems involving integers. The teacher emphasizes the importance of neatness...
3Blue1Brown
Vectors, what even are they? Essence of Linear Algebra - Part 1 of 15
What is a vector? Is it an arrow in space? A list of numbers?
Brian McLogan
Review of how to add and subtract negative and positive numbers
👉 You will learn how to add and subtract integers. We will work through adding and subtracting two integers up to multiple integers. We can look at adding and subtracting integers by looking at there values on a number line where there...
Curated Video
Subtracting Rational Numbers
In this video lesson we will learn that we use the same rule for subtracting rational numbers as we did for subtracting integers. We will rewrite the subtraction problem to be an addition problem by adding the opposite value. Fondly...
Curated Video
Adding Rational Numbers
In this video lesson we will learn the rules for adding rational numbers. We will apply the rules we have learned for adding integers. When adding the same signed rational values, we will add the absolute values and keep the sign. When...
Brian McLogan
Solving a two step equation with negative variable
👉 Learn how to solve two step linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. To solve for a variable in a two step linear equation, we first isolate the variable by using inverse...
Brian McLogan
Adding Polynomials
👉 Learn how to add polynomials. To add polynomials, we first simplify the polynomials by removing all brackets. Then, we combine like terms. Like terms are terms that share the same base and power for each variable. When you have...
Curated Video
Order of Operations with Fractions
In this short video we will answer a standardized math test question where we are asked to evaluate a mathematical expression with fractions. We will use order or operations to first evaluate inside the brackets/parentheses and add...