This book is aimed at helping Student Nurses to pass their entrance exam as well as Nurses to become familiar with basic maths and dosage calculations with ease. It will also help you to improve your speed in Mental Arithmetic and re-visit some other areas in arithmetic especially if you did your maths a long time ago or do not feel very confident in this subject. Everyday nursing involves being able to work accurately with dosage calculations and be familiar with simple conversions in metric measures (for example mg to mcg). In addition you need to be able to work out total dosage in tablet or liquid form for a given body weight be able to use formulas to work out BMI (body mass index), infusion rates, percentage strength, solution strength, and so on. This book contains many examples, exercises and four Mock Tests to help you prepare for your entrance exam.