Arithmetic – Form CO-AR

In a review of RCJS Arithmetic Form CO-A, we removed nine questions, reducing the number of questions to twenty-four. The questions removed were primarily those involving operations with whole numbers, which were deemed to be too easy based on statistical data from test results. We also replaced two questions, reordered all of the questions, and reduced the time limit to 20 minutes. These changes were made to improve the reliability and validity of the test. The test is now Form CO-AR.