A basal mathematics series for Grades 3 through 8 used to construct a set of graded tests.Three tests were developed at each grade level. A tests of pure computation was constructed for each grade level by randomly selecting one of the first three word problems form each section of the book. Each of these word problems was set up in purely computational form to measure the computation skills required by the word problems. All tasks of reading and problem interpretation, were removed by virtue of the problems'being set up in purely computational form.