Grade 8 Mathematics Practice Test, Exams of Mathematics

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Grade 8

Mathematics

Practice Test

Nebraska Department of Education 2010

Directions:

On the following pages are multiple-choice questions for the Grade 8 Practice

Test, a practice opportunity for the Nebraska State Accountability–Mathematics

(NeSA–M).

Each question will ask you to select an answer from among four choices.

For all questions:

• Read each question carefully and choose the best answer.
• You may use scratch paper to solve the problems.
• The Mathematics Reference Sheet is provided in the back of the test

booklet. You may refer to this page any time during the test.

• You may not use a calculator on this test.
• Be sure to answer ALL the questions.

Remember only one of the answers provided is the correct response.

NEG8MathPTPaper (^2) STOP.

3. Use the figure to answer the question below.

x

What is the measure of angle x in the triangle? A. 30° B. 60° C. 80° D. 150°

4. Use the figure below to answer the question.

(^1) c

a b

Lines a and b are parallel. Line c is a transversal. Which statement is true? A. m 1  m4, because they are opposite angles B. m1 = m6, because they are supplementary angles C. m 1  m8, because they are adjacent angles D. m1 = m4, because they are vertical angles

5. Which expression represents 4 less than twice a number, n?

A. 4  n B. n  4 C. 4  2 n D. 2 n  4

6. Use the table below to answer the question. Katelyn’s Bowling Scores Week Bowling Score 1 136 2 145 3 123 4 140 The table shows Katelyn’s bowling scores for a four-week time period. Her mean bowling score for the four weeks was 136. She bowled 126 the fifth week. What will be the change from the 4-week to the 5-week mean? A. decrease by 10 B. decrease by 2 C. stay the same D. increase by 3

9. What is the value of^23 + (–^16 )?

11. Becky is tossing a six-sided number cube labeled 1, 2, 3, 4, 5, and 6. What is the probability of tossing 6 two times in a row? A. 361

B. (^16)

C. (^13)

D. (^12)

12. Which represents the value of x in 6 – 4 x  26?

A. x  – B. x  – C. x  – D. x  –

13. Use the figure below to answer the question.

c

Using the Pythagorean Theorem, what is the value of c? A. 6 units B. (^) 20 units C. 6 units D. 20 units

16. Use diagram below to answer the question.

n

(^5 6) p 7 8

The lines n and p are parallel. Which angle is supplementary to  7? A.  2 B.  3 C.  6 D.  8

17. The sum of a number, n , and 5 is subtracted from 8. Which expression represents this statement?

A. 8  ( n + 5) B. ( n + 5) + 8 C. ( n + 5)  8 D. 8 + ( n + 5)

18. What is the value of w in 0.8 w –^72 =^12?

A. w = 3. B. w = 5 C. w = 37. D. w = 50

19. Use the figures below to answer the question.

A

C

B

D 4

S x^ T

R U

Rectangle ABCD is similar to rectangle RSTU. What is the value of x? A. 4 B. 5 C. 8 D. 20

22. Use the spinner below to answer the question.

What is the probablilty of the arrow NOT landing on the space with the? A. (^14)

B. (^13)

C. (^12)

D. (^34)

23. Johnny jogged around the track 16 times. Each lap is 400 meters. Which process could determine the total distance he jogged? A. add 16 and 400 B. divide 400 by 16 C. multiply 400 by 16 D. subtract 16 from 400

24. Use the table below to answer the question. Gas Mileage Stop Distance (miles) Gas (gallons) 1 350 13 2 270 11 3 375 14 4 260 10 5 305 12 Total 1560 60 At each stop, Bob recorded the distance he traveled and the amount of gas he purchased for his car. In simplest form, what is the ratio of total miles driven to total gallons of gas used? A. 601

B. 261

C. (^261)

D. (^601)

NEG8MathPTPaper (^14) STOP.

Number Key 1 C 2 A 3 C 4 D 5 D 6 B 7 D 8 B 9 C 10 B 11 A 12 D 13 B 14 A 15 C 16 D 17 A 18 B 19 B 20 B 21 B 22 D 23 C 24 C

Grade 8 Practice Test

Answer Key