Theory
Exercises
1. 
Fill in the blanks
Difficulty: easy 
1

2. 
Choose the right answer
Difficulty: easy 
1

3. 
Answer the questions
Difficulty: easy 
1

4. 
Select the suitable choice
Difficulty: medium 
2

5. 
Say true or false
Difficulty: medium 
2

6. 
Determine the unit digit
Difficulty: medium 
2

7. 
Select the correct choice
Difficulty: medium 
2

8. 
Fill the table with correct answers
Difficulty: hard 
6

9. 
Identify the terms
Difficulty: hard 
6

10. 
Determine the degree
Difficulty: hard 
6

Tests
1. 
Training test
Difficulty: medium 
7

2. 
Training test
Difficulty: easy 
4
