This sample question measures eighth-graders’ understanding of number properties and operations.
Student responses were scored according to a 2 point scale as "Correct" or "Incorrect." The sample response below is an example of a "Correct" response.
Overall, 42 percent of students were scored as having a "Correct" response. When only the students in the Proficient category are considered, 66 percent scored "Correct."
See more about this question in the NAEP Questions Tool.
View this question, at score 317, on a map of NAEP mathematics items.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2007 Mathematics Assessment.