Chapter 1 Review of Arithmetic for Medical Dosage Calculations Chapter Overview 3 5 ÷ 23 4 Chapter 1 reviews the arithmetic concepts needed for the rest of the textbook. It covers the basics of whole numbers, fractions, decimal numbers, and percents and includes a Diagnostic Test to evaluate the student’s knowledge of the arithmetic required for medical dosage calculation. This chapter can be omitted for those students who are proficient in basic arithmetic. Instructor’s Notes  The Diagnostic Test may be used in a number of ways. It can be given at the beginning of the first class, and the teacher or students themselves can grade the test whose answers can be found in Appendix A of the textbook. The Diagnostic Test results can then be used to initiate a discussion of those areas of arithmetic in which the students show weakness.  This chapter can also be assigned as independent study. Students can take the Diagnostic Test and then review those sections of the chapter that need review. Subsequent class meetings could address areas of student concern.  The teacher could first present a review of basic arithmetic following the flow of topics and examples in the chapter, and then assign the Diagnostic Test for homework.