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  • Subjects
  • Mathematics CBSE
  • Class 9
  • Number System

Real numbers and their decimal expansions

Theory

1. Recall the concept of rational numbers
2. More about rationals
3. Irrational numbers
4. How to represent irrational number in number line
5. Decimal expansion of real numbers
6. Decimal expansion of rational
7. Decimal expansion of irrational
8. Operations on irrational numbers
9. Finding irrational numbers between two numbers

Exercises

1. Say true or false

Difficulty: easy

3
2. Calculate the decimal expansion

Difficulty: easy

3
3. Rational or irrational number

Difficulty: easy

3
4. Difference of two numbers in the expression

Difficulty: easy

3
5. Find a rational number between two numbers

Difficulty: easy

3
6. Locating a point in number line

Difficulty: easy

2
7. Test the expression is rational or irrational

Difficulty: easy

3
8. Determine the rational number between two numbers

Difficulty: medium

4
9. Modify the decimal expression in fraction form

Difficulty: medium

4
10. Express the decimal number in rational form

Difficulty: medium

4
11. Switch the decimal expression in fraction form

Difficulty: medium

4
12. Write the decimal expression in fraction form

Difficulty: hard

4
13. Transform the decimal expression in fraction form

Difficulty: hard

4
14. Transform the decimal expression in fraction form

Difficulty: hard

5

Tests

1. Training test

Difficulty: medium

9

Teacher manuals

1. Methodical recommendation

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