MasteryConnect Module 8 Review 1

Mrs. Moore writes down an expression on the board. 7x - y + 23 Which is the best description of Mrs. Moore’s expression?

• The expression has three terms and two variables.

• The expression has three terms and three variables.

• The expression has four terms and two variables.

• The expression has four terms and three variables.

Which expression represents 6 × 6 × 6 × 4 × 4?

• (6 × 3) + (4 × 2)

• (6 × 6 × 6) + (4 × 4)

What is the value of 12 + 24 ÷ 6 + 3²(12 - 2³)?

• 42

• 52

• 80

• 100

What is the volume of a cube if s = 8?

• 24 units cubed

• 64 units cubed

• 256 units cubed

• 512 units cubed

Four students are asked to write down an expression that represents “five times the product of 8 and x.” The students’ responses are shown in the table.

Which student’s response is correct?

• A. Abby

• B. Gunnar

• C. Harper

• D. Suzanne

Which expression is equivalent to 4(m + 7)?

• 4m + 7

• 4m + 28

• 2m + 7 + m + 1

• 2m + 7 + 2m

Which equation demonstrates the Commutative Property of Addition?

• 3x + 6y = 6y + 3x

• 3x + 6y = 3x + 6y

• 3x + 6y = 3(x + 2y)

• 3x + 6y = (3 - x) + 6y

Which expression is equivalent to 10x + 3x?

• 13

• 13x

• The expression is in its simplest form.

Which pair of expressions is equivalent?

• 3(x + 4) and 12x

• 2x + 3 and 2(x + 1.5)

• 1(x + 3) and 3(x + 1)

• 5x + 3 and 5(x + 3)

A brother is 4 less than twice his sister’s age, s. Which expression represents the brother’s age?

• 2 - 4s

• 4 - 2s

• 2s - 4

• 4s - 2