Pre-Algebra A Module 2 Exam Review

Which of the following best shows the commutative property of addition?

• 2 + 3 = 3 + 2
• 2 + 3 = 5
• 2 + 3 = 2 - (3)

• 3 + 3 = 3 + (2+1)

Which of the following best shows the associative property of multiplication?

• 2 * (3 * 4) = (2 * 3) * 4
• 2 * 3 = 3 * 2
• 2 * (3 + 4) = 2 * 3 + 2 * 4
• 2 * 3 * 4 = 24

Which of the following best shows the distributive property?

• 2 + 3 = 3 + 2

• 2 + (2 + 3) = (2 + 2) + 3

• 2(2 + 3) = 2(2) + 2(3)

• 2(2 + 3) = 2(5)

Simplify 3(2x + y) using the distributive property.

• 6x + y
• 6x + 3y
• 5x + y
• 6x + 2y

Which terms are like terms in the following expression? 3x + 3xy – 2x + 5y + 5x²

• 3x, -2x and 5x²

• 3x and 2x

• 3x, 3xy, -2x and 5y

• 3x and -2x

Which of the following shows 3x + 15 + 6x – 7 + y in simplest terms?

• 18x + 8y

• 9x + y + 8

• 3x + 8 + y
• 9x + 15 + y

Which equation represents this statement: A number minus 10 is 170?

• n - 10 = 170

• n + 10 = 170

• 10 - n = 170

• n - 170 = 10

7 is a solution to the equation 3n + 9 = 33.

• Yes
• No

Find y: y − 4 = 6

• 2
• 10
• 8
• 12

What is the inverse operation of division?

• Subtraction
• Division

• Addition
• Multiplication