Hello guys welcome to your channelbr "THE CLASSES"br br (Number System | Class 9 Maths NCERT Chapter 1 Exercise 1.1 Introduction by THE CLASSES)br (नंबर सिस्टम। कक्षा ९ गडित NCERT chater 1, 1.1 introduction)br br br In this video we know-br * What is number system.br * What is number line.br * What is natural number, whole number, integers, rational number.br * How to represent various types of numbers on number line.br br br br Strap to get instant solution -br 1) capture the question.br 2) crop it.br 3) send it to commentsbr 4) get video solution on your phone.br br Now Say bye to doubts.br br Subscribe our channel and press the bell icon than never miss the video for NCERT books, syllabus, chapters and all topics related to Ncert board.