Practice Quiz

NAEP Mathematics Grade 8 - Question List

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26. The least common multiple of 8, 12, and a third number is 120. Which of the following could be the third number?
  1. 15
  2. 16
  3. 24
  4. 32
  5. 48
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27. The length of a rectangle is 3 more than its width. If L represents the length, what is an expression for the width?
  1. 3 ÷ L
  2. L÷ 3
  3. L× 3
  4. L + 3
  5. L- 3
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28. There are 15 girls and 11 boys in a mathematics class. If a student is selected at random to run an errand, what is the probability that a boy will be selected?
  1. 4/26
  2. 11/26
  3. 15/26
  4. 11/15
  5. 15/11
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29. If the price of a can of beans is raised from 50 cents to 60 cents, what is the percent increase in the price?
  1. 83.3%
  2. 20%
  3. 18.2%
  4. 16.7%
  5. 10%
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30. A loaded trailer truck weighs 26,643 kilograms. When the trailer truck is empty, it weighs 10,547 kilograms. About how much does the load weigh?
  1. 14,000 kilograms
  2. 16,000 kilograms
  3. 18,000 kilograms
  4. 36,000 kilograms
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