Properties and Expressions

Simplify! Remember you can not combine different variables together!

• y + x

• 24x

• 3x + 8

• 4x + 8

Simplify! Remember you can not combine different variables together! 2 correct answers!

• 6x + 2x + 16

• 8x + 16

• 24x

• 4x + 8

Simplify! Remember you can not combine different variables together!

• j + x + r

• 18jx + r

• 9j + 9x + r

• 9

Simplify! Remember you can not combine different variables together!

• 18s - 42

• 9s - 7

• 7 - 42

• 42 - 18s

Three friends will pay $x each for admission to the RISD Museum plus $1 to view the mummy exhibit. A fourth friend will pay admission but will not view the mummy exhibit. Write and simplify an expression that represents the total cost. There are 2 correct answers.

• 3x + 3 + x

• 7x

• 2x

• 4x + 3

• 6x +3

What property is used to show the equivalent expressions below: (3y + 2x) + 4x = 3y + (2x + 4x)

• Associative Property (changes the grouping)

• Commutative Property (changes the order)

• Distributive Property

• Identity Property

Which property is being described?

15y + 7x = 7x + 15y

Moving the terms around does not change the value.

• Associative Property

• Identity Property

• Commutative Property

• Distributive Property

Use the Commutative Property of Addition to complete the equivalent expression:

• 7b

• 7

• 7a²

• 5

Which property is represented?

7(2t + u) = 14t + 7u

• Commutative Property

• Associative Property

• Distributive Property

Use the Distributive Property to write an expression equivalent to:

9(x + 7)

• 9x + 7

• 9x + 63

• 72x

• x + 63