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Theory
Exercises
1. 
Choose the correct answer
Difficulty: easy 
3

2. 
Find the value of 'x'
Difficulty: easy 
3

3. 
Calculate the number of dresses
Difficulty: easy 
3

4. 
Determine the days
Difficulty: easy 
3

5. 
Select the best option
Difficulty: medium 
4

6. 
Find the number of toys
Difficulty: medium 
4

7. 
Calculate the number of kilograms
Difficulty: medium 
4

8. 
Calculate the days
Difficulty: medium 
4

9. 
Determine the number of machines
Difficulty: hard 
5

10. 
Find the value of 'A'
Difficulty: hard 
5

11. 
Find the number of men
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: easy 
13

2. 
Training test
Difficulty: medium 
5
