Theory
Exercises
1. 
Factor tree
Difficulty: easy 
3

2. 
Choose the smallest divisible number
Difficulty: easy 
3

3. 
Determine the value of the variables
Difficulty: medium 
4

4. 
HCF and LCM of algebraic expressions
Difficulty: medium 
4

5. 
Determine the HCF and LCM
Difficulty: medium 
4

6. 
Find the HCF and LCM of three numbers
Difficulty: medium 
5

7. 
Find the greatest number
Difficulty: hard 
5

8. 
Find the maximum length of the square tile
Difficulty: hard 
5

9. 
Calculate the time
Difficulty: hard 
5

Tests
1. 
Training test
Difficulty: medium 
10
