The latest edition of the renowned volume ObJedive Arithmetic is in the hands of our Vlllued readers. We have revised and updated this edition. We have also added latest questions related to various competition examinations and tried to become as exhaustive as possible. This edition has many useful tips, notes and shortcut methods for students. They are essentially the tips and formulae that are to be used by candidates to solve questions quickly. The style of the book remains the same, for it facilitates easy reading. comprehension and application. Students must read the theory and definitions first. Then, they must read solved examples which have been given aplenty in this volume. They can also solve these eumples briefly on rough sheets. Finally, they should attempt to solve the exercise. Each and every aercise has been solved in this volume. So, they can get support from solutions at any point of time. However, they must attempt the questions of the exercises first. If they are stuck up in some questions, they can refer to their solutions anytime. The author, Editor-in-Chief and DTP staff have left no stones unturned to make the presented volume a fine technical presentation. However, some mistakes may have crept in due to human and machine errors. We request our Vlllued readers to identify them and send the same to us. In the subsequent editions of this volume, 1 we shall incorporate all such corrections. That way, the presented volume would become a masterpiece in the realm of competition Arithmetic.