Expressions Unit Review

Which expression below does not represent 256?

• 3 · 3 · 3 · 3

• 4 · 4 · 4 · 4

• 4^4

• 4(64)

Simplify: 12(5a + b)

• 60a + 12b

• 60a + b

• 12a + 12b

• 60 + 12b

Determine the value of the expression below.

50 + (6 ÷ 2)² – 12

• 2q

• 44

• 47

• 94

Which set of expressions below are not equivalent?

• 7(9x + 4)

  7 · 9x + 7 · 4

• 9(4x + 7)

  36x + 63

• 4(7x + q)

  11x + 13

• 7(4x + 9)

  7(4x) + 7(9)

Natalie is creating a garden bed with the dimensions shown below. Find the area of the rectangular garden bed using the formula A = bh.

• 54 ft²

• 48 ft²

• 17 ft²

• 52 ft²

Determine the value of the expression below.

• 3

• 5

• 7

• 9

Write the following expanded form in exponent form.

4 · 4 · 8 · 8 · 4 · 8

• 4³ · 8³

• 4² · 8²

• 4³ · 8²

• 4² · 8³

Evaluate the expression if p = 6 and q = 4.

5(6p + 3q)

• 240

• 180

• 300

• 360

The monthly cost of a gym membership is $50 plus $8 for each class attended. Which of the following expressions could represent the monthly cost of a gym membership with c number of classes attended?

• 8 + 50c

• 8c + 50

• 58c

• 50c – 8

Which two expressions are equivalent?

• 2 · x · q

  2(x + q)

• 2 ÷ (q – x)

  2 ÷ (x – q)

• 2(q + x)

  2 · q + q · x

• 2 + q + x

  2 + (q + x)