Chapter 6 Expressions

What is 2 × 2 × 2 written using an exponent?

• 2³
• 8
• 2 × 3    
• 3²

  What is the value of the expression?
20 – 2³ ÷ 4

• 3
• 18
• 22
• 88

  What is the value of the expression? 
28 + 6 × 4 – 2

• 44
• 50
• 68
• 134

A zoo charges $11.50 for adults and $8 for children. Which expression shows the total cost of buying 2 adult tickets and 4 children’s tickets?

• $11.50 × 2 + $8 × 4 
• $11.50 × 4 + $8 × 2 
• $11.50 × $8 + 2 × 4
• $11.50 + $8 × 2 × 4

Travis made 6 calls in one day. Each call cost the same amount of money. The next day he made a call that cost $4. Which expression represents the total cost of the calls Travis made during the two days?

• 6 + 4c

• 6c + 4

• 4c + 6c

• 6 + 4 + c

Which property is illustrated by the statement 4 + (9 + 12) = (4 + 9) +12?

• Associative
• Identity
• Distributive
• Commutative

Which property is illustrated by the statement 9 × 1 = 9?

• Associative
• Identity 
• Distributive
• Commutative

Which shows how to find 9 × 305 mentally by using the Distributive Property?

• 9(300) + (5) 
• 9(300) + 5(5)  
• 5(300 + 9)
• 9(300) + 9(5)

What is the value of a + b – c if a = 20, b = 10, and c = 6 ?

• 25

• 24

• 35

• 40

What is the value of the expression?
42 × 3 – (2⁴ – 1) ÷ 5

• 0
• 22
• 123
• 124