Section 3.1-3.2 Quiz

True or False: 7z − 9 = 12, if z = 3.

• False
• 7z − 9 = 15
• z = 4
• True

Match the numeric expression to each word phrase.

• the product of 3 and negative 2

• 3(-2)

• the quotient of negative 16 and 8

• 4+17

• the sum of 4 and 17

Write an algebraic expression for each word phrase.

2 times n, minus negative 3

• 2n - 3
• n + 2
• 2n - (- 3)

• 3n + 3

Write an algebraic expression for each word phrase.

7 times the sum of a number and 12.

• 7 + (x + 12)
• 7 * x + 12
• (7x) + 12
• 7(x + 12)

Match each property with its equation.

• (6 × 8) × 5 = 6 × (8 × 5)

• Commutative Property of Addition

• 7 + 0 = 7

• Associative Property of Multiplication

• 8 + 5 = 5 + 8

• Identity Property of Addition

Use the commutative property of multiplication to simplify mentally.

4 × 13 × 25

• 1300
• 1040
• 650
• 520

Use the commutative property of Addition to simplify mentally.

52 + 19 + 8

• 60
• 79
• 85
• 70

Use the commutative and associative properties of addition to simplify mentally.

35 + 29 + 15 + 21

• 90
• 85
• 75
• 100

Write an algebraic expression for the word phrase and identify what the

variable stands for in the expression.

Joy’s age if she is 7 years younger than her brother Robert

• R - 5
• R - 7
• R + 7
• R + 10

Write each word phrase as an algebraic expression.

the quotient of x and 13

• x + 13
• 13 - x
• x * 13
• x / 13