Pre-Algebra Unit 1 Test

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Pre-Algebra Unit 1 Test
Read each question and answer it in Edmodo. Be sure to check your work! Refer to your weekly schedule for due dates. Be sure to answer all 15 questions. Each question is worth 3 points each for a total of 45 points. Good luck!

Answers are highlighted RED

1. Simplify using the order of operations:

3 + 7 ∙ 3 – 18 ÷ 6

A: 2

B: 5

C: 2.5

D: 21

2. Simplify using the order of operations:

(16 – 7) + 3 • 2

A: 24

B: 15

C: 96

D: 48

3. Simplify using the order of operations:

[pic]

A: 10

B: 1.5

C: 15

D: 90

4. Solve if x = 3 and y = 2

2x + 15

y + 5

A: 2.375

B: 2

C: 1

D: 3

5. Solve if a = 3, b = 6, and c = 9

[pic] + [pic]=

A: 5/6

B: 1/3

C: 3/9

D: 1/9

6. Translate this phrase into an equation.

The difference of twice a number and 6

A: 2 • 6 – n

B: 2n + 6

C: 2n – 6

D: 6n - 2

7. Translate this phrase into an equation.

The product of a number and three is six more than the number.

A:3 + n = n + 6

B:3 ÷ n = n + 6

C:3 – n = n + 6

D:3n = n + 6

8. Translate this phrase into an equation.

7 less than 8 times a number is 33.

A: 7 • 8 = 33

B: 8n- 7 = 33

C: 8 – 7 •n = 33

D: 8 • 33 – 7 = n

9. What is the solution to the open sentence?

3x + 7 = 5x – 1

A: 1

B: 2

C: 3

D: 4

10. What is the solution set for this equation given the replacement set:

7x = 21: {1, 2, 3, 4}

A: x = {1, 2, 3, 4}

B: x = {1}

C: x = {2}

D: x = {3}

11. What is the solution set for this equation given the replacement set?

2x + 4 > x + 2; {2, 3, 4, 5, 6}

A :x = {2, 3, 4, 5, 6}

B:x = {5, 6}

C:x = {2}

D:x = {6}

12. Name a related equation.

5x = 20

A: x = 5/20

B: 20 = 5/x

C: 5 = x/20

D: x = 20/5

13. Which is a related equation?

8 + x = 14

A: 8 + 14 = x

B: 14 + 8 = x

C. x = 14 – 8

D. 8 + 8 = 14

14. The number of cars in a store’s parking lot during a Special Saturday Sale is about 250 greater than the number in the lot on a regular day. If there are about 700 cars in the lot during the Special Saturday Sale, about how many cars are in the lot on a regular day?

A: Not enough information given

B: There are about 950 cars on a regular day.

C: There are about 250 cars on a regular day.

D: There are about 450 cars on a regular day.

15. In seventh grade, there are 4 times as many girls as there are boys, and the number of boys is 3 fewer than the number of boys in 8th grade. If there are 20 boys in 8th grade, then how many girls are there in 7th grade?

A: Not enough information given.

B: There are 60 girls in 7th grade.

C: There are 80 girls in 7th grade.

D: There are 68 girls in 7th grade.
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