Chapter 3 Review

Solve when: 
x = 5 and y = 10
3x + y

• 15
• 18
• 25
• 45

Write the phrase as an expression:
16 less than a number 

• 16 - n 
• 16n
• n - 16
• 16 ÷ n

Tell which property is illustrated by the statement:
5 + 8 = 8 + 5

• Commutative Property of Addition
• Commutative Property of Multiplication 
• Associative Property of Addition
• Associative Property of Multiplication

Simplify the expression. 
2 + (5 + n)

• 7 + n
• 10 + 2n
• 7n
• 2 + 5n

The sides of a square each have a length of 11x.  Write and simplify an expression for the perimeter of a square. 

• 44x
• 33x
• 22x
• 11x

Simplify the expression. 
3(g + 6) + 2g

• 3g + 18 + 2g
• 5g + 18
• 5g + 6
• 11g

Write the phrase as an expression:
The sum of a number and 12

• 12n
• n + 12
• n - 12 
• n ÷ 12

Factor the expression:
12y - 8

• 2(6y - 4)
• 12(y - 8)
• 4(3y - 2) 
• y(12 - 8)

Which property does the statement illustrate?
2 + (5 + 7) = (2 + 5) + 7

• Commutative Property of Addition 
• Commutative Property of Multiplication 
• Associative Property of Addition
• Associative Property of Multiplication

Simplify using the distributive property. 
5(n + 8)

• 5n + 8
• n + 40
• 5n + 40
• 13n