Theory
Exercises
1. 
Drag the correct answer
Difficulty: easy 
4

2. 
Say true or false
Difficulty: easy 
3

3. 
Find the correct answer
Difficulty: medium 
3

4. 
Choose the correct axiom
Difficulty: medium 
4

5. 
Calculate the value
Difficulty: hard 
4

6. 
Select solution based on image given
Difficulty: hard 
4

Tests
1. 
Training test
Difficulty: medium 
10
