NAEP Mathematics Grade 8 - Question List

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11. The endpoints of a line segment are the points with coordinates (2, 1) and (8, 9). What are the coordinates of the midpoint of this line segment?
  1. (2, 3½)
  2. (3, 4)
  3. (5, 5)
  4. (4½, 5½)
  5. (10, 10)
12. Ms. Thierry and 3 friends ate dinner at a restaurant. The bill was $67. In addition, they left a $13 tip. Approximately what percent of the total bill did they leave as a tip?
  1. 10%
  2. 13%
  3. 15%
  4. 20%
  5. 25%
13. Length can be measured to within 0.05 centimeter accuracy by using a certain type of measuring instrument. A reading of 3.7 centimeters on this instrument means that the actual length is at least
  1. 3.20 centimeters
  2. 3.65 centimeters
  3. 3.69 centimeters
  4. 3.70 centimeters
  5. 3.75 centimeters
14. The cruise ship Titanic was 882 feet long. Which of the following is closest to that length?
  1. Two moving-van lengths
  2. Fifty car lengths
  3. One hundred skateboard lengths
  4. Five hundred school-bus lengths
  5. One thousand bicycle lengths
15. Of the following, which is the closest approximation of a 15 percent tip on a restaurant check of $24.99?
  1. $2.50
  2. $3.00
  3. $3.75
  4. $4.50
  5. $5.00

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