NCERT Book Class 9 Maths Chapter 1 Number Systems
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NCERT Book Class 9 Maths Chapter 1 Number Systems – Text
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Page 1
CHAPTER 1
NUMBER SYSTEMS
1.1 Introduction
In your earlier classes, you have learnt about the number line and how to represent
various types of numbers on it (see Fig. 1.1).
Fig. 1.1 : The number line
Just imagine you start from zero and go on walking along this number line in the
positive direction. As far as your eyes can see, there are numbers, numbers and
numbers!
Fig. 1.2
Now suppose you start walking along the number line, and collecting some of the
numbers. Get a bag ready to store them!
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Document Details
| Board / Org | NCERT |
| Exam | Class 9 |
| Type | Books |
| Pages | 27 |
| Updated | 22 Jul 2026 |