6th Grade Math Textbook, Progress

Update your skills. See page 7.

Multiplication and Division Equations

4-7

An object on Jupiter weighs about 2.6 times its

weight on Earth. If a spacecraft weighs 4914 lb

on Jupiter, what is its weight on Earth?

To find its weight on Earth, write and solve

an equation.

Let yrepresent the spacecraft’s weight on Earth.

2.6 times object’s weight on Earth is object’s weight on Jupiter

2.6y 
 4914

To solve a multiplication equation,

use the Division Property of Equality.

2.6y
 4914

2.6y2.6
 4914 2.6

y
 1890

Check: 2.6y
 4914

2.6•^1890 

?

4914

4914 
 4914 True

The spacecraft weighs 1890 lb on Earth.

To solve a division equation, use the

Multiplication Property of Equality.

Solve: 
 192

• 14
  192 • 14
  x
  2688

Check: 
 192

?

192

192 
 192 True

2688

14

x

14

x

14

x

14

Divide both

sides by 2.6

to isolate the

variable.

Multiply both

sides by 14

to isolate the

variable.

multiplication equation

Remember:

Multiplication and division

are inverse operations.

Division Property of Equality

When you divide both sides of an

equation by the same number,

you get a true statement.

Multiplication Property of Equality

When you multiply both sides of an

equation by the same number, you

division equation get a true statement.

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