Class 9th

 

Chapter -1 (Number System)

 

1.     Exercise 1.1 - https://www.youtube.com/watch?v=D6PnCwrIt8A&t=90s

2.     Exercise 1.2  https://www.youtube.com/watch?v=JB-euZMnNvc&t=398s

3.     Exercise 1.3  https://www.youtube.com/watch?v=9P4qlGbj6hM

                     https://www.youtube.com/watch?v=WbCIuyF-wqs

4.     Exercise 1.4  https://www.youtube.com/watch?v=p_-8O5C-BTI&t=8s

5.     Exercise 1.5  https://www.youtube.com/watch?v=HEAvOkcVNZw&t=594s

6.     Exercise 1.6  https://www.youtube.com/watch?v=_RuiPgIAj2s&t=124s