SPECIAL FEATURES Test your understanding exercises for immediate practice are given after every topic. Exercises have been redesigned to include all types of questions, especially Multiple Choice Questions (MCQs), and Higher Order Thinking Skills (HOTS). Chapter Wrap Up and Chapter Assessment are provided at the end of each chapter. Lab activities as per CBSE guidelines have been included at the end of each book. Mental Maths exercises have been given to develop skills in rapid calculations. Periodical Assessment is a part of the on-going scholastic evaluation of the child. It is a kind of Unit Test. A self-assessment of the concepts
