Theory
Exercises
1. 
Select the correct answer
Difficulty: easy 
2

2. 
Calculate the first five multiples
Difficulty: easy 
2

3. 
Match column I items to column II items
Difficulty: easy 
5

4. 
Find all the factors
Difficulty: medium 
4

5. 
Write down all required multiples
Difficulty: medium 
3

6. 
Express the number as sum of odd primes
Difficulty: medium 
5

7. 
Check the number is prime or not
Difficulty: hard 
4

8. 
Find the required primes
Difficulty: hard 
6

9. 
State whether the declaration is true or false
Difficulty: hard 
4

10. 
Write seven consecutive composite number less than 100
Difficulty: easy 
4

Tests
1. 
Training test
Difficulty: medium 
2
