Multiplication and Division Equations
Multiplication and Division
Standard
6.N.12 Demonstrate an understanding of the inverse relationship of addition and subtraction, and use that understanding to simplify computation and solve problems.
6.P.2 Replace variables with given values and evaluate/simplify, e.g., 2() + 3 when = 4.
6.P.3 Use the properties of equality to solve
problems, e.g., if + 7 = 13, then =
13 – 7, therefore = 6; if 3 x = 15, then 1/3 x 3 x = 1/3 x 15,
therefore = 5.
Cluster
Objective
To solve multiplication and division equations.
Lesson
To solve a Multiplication equation, use the inverse to find the value of the variable.
Ex. 5s = 20
The inverse of multiplication is division, so divide both sides of the equation by 5
5s -:- 5 = 20 -:- 5, s = 4
To solve a Division equation, use the invers to finde the value of the variable.
Ex. y/7 = 3
The inverse of division is multiplication, so multiply both sides by 7.
y/7 * 7 = 3 * 7, y = 21
Practice
If you need more practice, use our Online Tutorial that is used with our Text Book.
Click on Learn the Lesson
