Theory
Textbook Questions
1. 
Find the least divisible number
Difficulty: easy 
1

2. 
Choose the correct answer
Difficulty: medium 
2

3. 
Find the smallest number
Difficulty: medium 
2

4. 
Prime factorisation of numbers
Difficulty: hard 
5

5. 
Find the greatest number
Difficulty: hard 
5

Practice Questions
1. 
Factor tree
Difficulty: easy 
1

2. 
HCF and LCM of algebraic expressions
Difficulty: medium 
4

3. 
Determine the HCF and LCM
Difficulty: medium 
4

4. 
Find the HCF and LCM of three numbers
Difficulty: medium 
5

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

6. 
Calculate the time
Difficulty: hard 
5

Key Questions for School Exam Preparation
1. 
Choose the answer and give reason
Difficulty: medium 
5

2. 
Find the value of the variables
Difficulty: medium 
5

Worksheets
1. 
Worksheet
Difficulty: medium 
13
