Class 9 Maths NCERT Number System
The Number System is the first chapter of Class 9 NCERT Mathematics and forms the foundation of higher-level concepts. This chapter introduces students to real numbers, including rational and irrational numbers, integers, whole numbers, and natural numbers. It explains how numbers are represented on the number line and covers important topics such as terminating and non-terminating decimals, recurring decimals, and the concept of irrational numbers like √2 and π.
Students also learn about laws of exponents for real numbers and how to simplify expressions using them. The chapter is designed with simple explanations, solved examples, and a variety of exercises to strengthen understanding. By practicing this chapter, students build a strong base for algebra, geometry, and advanced mathematics in higher classes.
The NCERT Number System Class 9 Maths chapter is essential for exam preparation and helps students improve their logical and problem-solving skills.
