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This page provides a list of educational videos related to Addition Methods. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Addition Methods.
Solve System of Linear Equations Using Addition Method
By APUS07
YouTube presents Solve System of Linear Equations Using Addition Method, an educational video resource on math.
Addition elimination method 1 | Systems of equations | 8th grade | Khan Academy
By Khan Academy
Khan Academy presents Addition Elimination Method 1, an educational video resource on math.
Addition elimination method 2 | Systems of equations | 8th grade | Khan Academy
By Khan Academy
Khan Academy presents Addition Elimination Method 2, an educational video resource on math.
Addition elimination method 3 | Systems of equations | 8th grade | Khan Academy
By Khan Academy
Khan Academy presents Addition Elimination Method 3, an educational video resource on math.
Systems of Linear Equations - Inconsistent Systems Using Elimination by Addition - Example 1
By PatrickJMT
YouTube presents Systems of Linear Equations - Inconsistent Systems Using Elimination by Addition - Example 1 an educational video resources on math.
[5.NBT.7-1.0] Operations on Decimals - Common Core Standard
By Front Row
Discover more Common Core Math at https://www.frontrowed.comAdd decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.Front Row is a free, adaptive, Common Core aligned math program for teachers and students in kindergarten through eighth grade. Front Row allows students to practice math at their own pace - learning advanced concepts when they're ready and receiving remediation when they struggle. Front Row provides teachers with access to a detailed data dashboard and weekly email reports that show which standards are causing students difficulty, what small groups can be formed for interventions, and how their students are progressing in math.Discover more Common Core Math at https://www.frontrowed.com
[5.NBT.7-3.0] Operations on Decimals - Common Core Standard
By Front Row
Discover more Common Core Math at https://www.frontrowed.comMultiply decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.Front Row is a free, adaptive, Common Core aligned math program for teachers and students in kindergarten through eighth grade. Front Row allows students to practice math at their own pace - learning advanced concepts when they 're ready and receiving remediation when they struggle. Front Row provides teachers with access to a detailed data dashboard and weekly email reports that show which standards are causing students difficulty, what small groups can be formed for interventions, and how their students are progressing in math.Discover more Common Core Math at https://www.frontrowed.com
Newman Projections
By The Organic Chemistry Tutor
This organic chemistry video tutorial provides a basic introduction into newman projections. It explains how to draw the newman projections of ethane, butane, and 2,3-dimethylpentane. It explains how to draw the eclipsed and staggered conformations of ethane as well as the gauche and anti conformations of butane. It explains how to use conformational analysis to determine which conformation is most stable.
Total seats in a theater | Multiplication and division
By Khan Academy
Solve a two-step word problem by drawing a picture and creating an equation.
How many truffle eating guests attended a party
By Khan Academy
Solve a two-step word problem by drawing a picture and creating an equation.
Marbles for friends | Multiplication and division
By Khan Academy
Solve a two-step estimation word problem.
Running distance in a week | Multiplication and division
By Khan Academy
Solve a two-step word problem by drawing a picture and creating an equation.
14 - Solve Quadratic Systems of Equations by Addition - Part 1 (Simultaneous Equations)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Adding and Subtracting Polynomials | MathHelp.com
By MathHelp.com
In this example, notice that each of our variables, x, y, and z, appears in all three equations. To solve this system, we use the addition method. In other words, let’s start with our first two equations, x + y + z = 4, and x – y + z = 2. Notice that if we add these equations together, the +y and –y will cancel out, and we have 2x + 2z = 6. So, in our new equation, 2x + 2z = 6, we’ve eliminated the variable y. Unfortunately, we still haven’t solved for any of our variables. However, if we can create another equation with just x and z in it, then we’ll have a system of equations in two variables, which we can use to solve for x and z. To create another equation with just x and z in it, we need to eliminate y. We can’t add the first and second equations together, because we’ve already done that. However, notice that if we add the first and third equations together, the first equation has a +y and the third equation has a –y, so we’ll be able to eliminate the y. So we have our first equation, x + y + z = 4, and our third equation, x – y – z = 0, and adding them together, notice that the +y – y cancels out, and, as a bonus, the +z – z also cancels out, so we have 2x = 4, and dividing both sides by 2, x = 2. Now, since we know that x = 2, notice that if we plug a 2 in for x in the equation that we created earlier, we can solve for z. And we have 2(2) + 2z = 6, or 4 + 2z = 6, and subtracting 4 from both sides, we have 2z = 2, and dividing both sides by 2, z = 1. So x = 2 and z = 1, and to find the value of y, we simply plug our values of x and z into any of the equations in the original system. Let’s use the first equation, x + y + z = 4. Since x = 2 and z = 1, we plug a 2 in for x and a 1 in for z, and we have 2 + y + 1 = 4, or 3 + y = 4, and subtracting 3 from both sides, y = 1. So x = 2, y = 1, and z = 1, and finally, we write our answer as the ordered triple, x, y, z, or (2, 1, 1).