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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