Number Systems Formula Class 9 PDF Free Download

Are you looking for important formulas of Number Systems for Class 9 ? You’re in the right place! In this post, we’ve compiled all essential formulas from Chapter 1 of Class 9 Maths – Number Systems. You can download the free PDF and revise quickly for your exams.

1. Natural Numbers Definition :

2. Whole Numbers Definition :

Properties of whole Numbers :

3. Integers Definition :

4. Rational Numbers Definition :

5. Simplest form of a rational number :

How to find rational number between given two numbers.

6. Terminating and Non-Terminating decimal Condition.

7. Irrational Numbers Definition :

Properties of irrational numbers.

8. Real Numbers Definition :

Properties of Real Numbers :

9. Addition properties of Real Numbers :

10. Multiplication properties of Real Numbers :

11. Formula :

12. Rationalisation Rule :

13. Rationalising Factor :

14. Law of radicals :

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