- Natural and Whole Number
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- Integers
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- Rational and Irrational Numbers
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- Real Numbers
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- Laws of exponents
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- What is Number Line
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- successive Magnification

Here we are trying to give the Class 9 Maths Important Questions for Number System. It tests the basic concepts and at the same makes the student comfortable with the questions

(i)

Check your answers

(i) (√2 + √3)/2

(ii) 1.5

(iii) 1.8

(iv) (√2 . √3)/2

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Express and in the simplest form of rational no

3. rational numbers have only two choices- either they are terminating or non-terminating ________

6. The First person to discover the numbers which were not rational

7. The number (√3 -1)(√3 +1) is

8. Counting Number are called

1. Non-terminating non recurring decimal expression

2. The set of positive and negative number is

4. Number of the form p/q

5. Who was the first to compute digits in the decimal expansion of π(Greek genius )

Check your answers

Given below are the links of some of the reference books for class 9 Math.

- Mathematics for Class 9 by R D Sharma One of the best book for studying class 9 level mathematics. It has lot of problems to be solved.
- Secondary School Mathematics for Class 9 by R S Aggarwal This is also as good as R.D. Sharma. Either this or the book by R.D. Sharma will do. I find book R.S. Aggarwal little bit more challenging than the one by R.D. Sharma.
- Pearson IIT Foundation Series - Maths - Class 9 Buy this book if you want to challenge yourself further and want to prepare for JEE foundation.
- Pearson IIT Foundation Physics, Chemistry & Maths combo for Class 9 Only buy if you are prepared to study extra topics and want to take your studies a step further. You might need help to understand topics in these books.

You can use above books for extra knowledge and practicing different questions.

Class 9 Maths Class 9 Science

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