Expressions - Unit Test

1. Which expression below does NOT represent 343?

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2. Simplify: 12(3y + x)

• 12 + x
• 36y + 12x
• 12 + 3y + x
• 15yx

3. Determine the value of the expression below.

• A. 66
• B. 72
• C. 42
• D. 56

4. Which set of expressions below are NOT equivalent?

• A. 8(3x + 7) and 8(3x) + 8(7)
• B. 3(8x + 7) and 11x + 10
• C. 7(3x + 8) and 7 ∙ 3x + 7∙ 8
• D. 3(7x + 8) and 21x + 24

5. Triston is building a fence for a dog park with the dimensions shown below. Find the area of the rectangular dog park using the formula A = bh.

• A. 96 yd²
• B. 40 yd²
• C. 20 yd²
• D. 48 yd²

6. Determine the value of the expression below.

• 5
• 9
• 8
• 2

7. Which property is represented below?

• A. Associative property of addition
• B. Associative property of multiplication
• C. Commutative property of addition
• D. Commutative property of multiplication

8. Which of the following shows the expanded form correctly written in exponent form?

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• 
• 
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9. Evaluate the expression if a = 2 and b = 7. 4a + 3 + 2b

• 21
• 43
• 72
• 25

10. The cost of renting a bounce house is $75 plus $10 for each hour of use. Which of the following expressions could represent the cost of renting a bounce house for h number of hours?

• A. 10 + 75h
• B. 85h
• C. 10h + 75
• D. 10h – 75