Theory
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
