The purposes of the assessment project were to determine when the fourth grade math skills were acquired by the majority of students in the Salem, Oregon public schools, and to compare accomplishment on the criterion-referenced test with accomplishment on a standardized test. Because the project required testing grades 3-6, multiple matrix sampling was used. Five subtests were constructed for each type of test. The results showed that the students were behind in their math skills. But with persistent effort, the majority of students could acquire the basic skills. For grades 3 and 4, the standardized test was an easier test. (Author)