Class 9 – Chapter 1 – Links

Chapter 1 - Number system

All Mathemafia YouTube videos of Class 9 chapter 1 (Number System) are embedded on this webpage. You can watch all these videos right here in the same order as they appear in the NCERT textbook. Number system is the base of Mathematics and it is very important for students to have very good knowledge of it. In the first introductory video, Number System has been explained in detail with very easy to understand examples. you are advised to must watch the introductory video before watching any of the chapter’s example or question. Here is the list of all solved video tutorials of this chapter at one place – Examples, concepts, exercises, theorems | Class 9 Chapter 1, Number System.

This playlist covers all questions, concepts and examples of chapter 1 (Number System) of class 9, NCERT textbook. You may watch all these tutorials on YouTube by clicking the link displayed below or click a thumbnail to watch the tutorials on this webpage.
Watch complete chapter on YouTube
English Version – Number System

The introductory video to understand the Number System has been created in English as well. You may watch this version in case you struggle to understand Hinglish.

Class 9 Chapter 2 | Polynomials
​

Concepts

Number System – Must watch

Rational and Irrational numbers

Exercise 1.1

Question 1

Question 2

Question 3

Question 4

Exercise 1.2

Question 1

Question 2

Question 3 & 4

Exercise 1.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7 & 8

Question 9

Exercise 1.4

Question 1 & 2

Exercise 1.5

Question 1

Question 2

Question 3

Question 4

Question 5

Exercise 1.6

Question 1

Question 2 & 3

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7, 8 & 9

Example 10

Example 11

Examples

Example 12, 13, 14, 15

Example 16

Example 17

Example 18, 19, 20

Example 21