NAEP Mathematics Grade 8 - Question List

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81. Which of the following types of graph would be best to show the change in temperature recorded in a city every 15 minutes over a 24-hour period?
  1. Pictograph
  2. Circle graph
  3. Line graph
  4. Box-and-whisker plot
  5. Stem-and-leaf plot
82. It costs $0.25 to operate a clothes dryer for 10 minutes at a laundromat. What is the total cost to operate one clothes dryer for 30 minutes, a second for 40 minutes, and a third for 50 minutes?
  1. $3.25
  2. $3.00
  3. $2.75
  4. $2.00
  5. $1.20
83. What is the greatest number of 30-cent apples that can be purchased with $5.00 ?
  1. 6
  2. 15
  3. 16
  4. 17
  5. 20
84. If 15 + 3 x = 42, then x =
  1. 9
  2. 11
  3. 12
  4. 14
  5. 19
85. Of the following, which is the best estimate for the area of a typical classroom floor?
  1. 700 feet
  2. 700 square feet
  3. 700 cubic feet
  4. 700 yards
  5. 700 square yards

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