Solving Subtraction Equations Using Inverse Operations

Solving Subtraction Equations Using Inverse Operations

Assessment

Interactive Video

Mathematics

4th - 6th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains how to solve a simple subtraction equation using a real-life example. Tiffany buys a bag of pretzels, eats five, and has 12 left. The equation X - 5 = 12 is used to find the original number of pretzels. The tutorial demonstrates isolating the variable X by adding 5 to both sides, resulting in X = 17. The solution is verified by substituting back into the equation. The lesson concludes with a recap of solving one-step subtraction equations.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What equation represents the number of pretzels Tiffany originally had?

X = 12 + 5

X - 5 = 12

X + 5 = 12

X = 5 - 12

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the equation X - 5 = 12?

Divide both sides by 5

Add 5 to both sides

Subtract 12 from both sides

Multiply both sides by 5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we add 5 to both sides of the equation X - 5 = 12?

To isolate the variable X

To balance the equation

To make the equation more complex

To eliminate the variable X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the solution to the equation X - 5 = 12?

X = 7

X = 17

X = 12

X = 5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can we verify that the solution X = 17 is correct?

By checking if 17 - 5 equals 12

By adding 17 and 5

By subtracting 17 from 12

By dividing 17 by 5

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