Theory
Exercises
1. 
Locate the range of a real number
Difficulty: easy 
2

2. 
Classify the expressions as rational or irrational
Difficulty: easy 
3

3. 
Simplify the expression
Difficulty: easy 
3

4. 
Magnify the number with one decimal place
Difficulty: medium 
4

5. 
Add, multiply the given expressions
Difficulty: medium 
4

6. 
Subtract, divide the given expressions
Difficulty: medium 
4

7. 
Add, subtract and multiply the given expressions
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: medium 
9
