Small Numbers: Challenge & Extension
Mathematics
Grade 7
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on the Highest Common Factor (HCF) of small numbers, designed to challenge and extend Grade 7 students' understanding and problem-solving skills.
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Full preview • 12 questions
Small Numbers: Challenge & Extension
Subject: MathematicsGrade: Grade 7
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Untitled Worksheet
Grade Grade 7
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Calculate the HCF of 12 and 18 using prime factorization.
[2 marks]2.
Find the HCF of 24, 36, and 48.
[2 marks]3.
Determine the HCF of 15 and 25.
[2 marks]4.
Find the HCF of 8, 12, and 20.
[2 marks]5.
Calculate the HCF of 21 and 28.
[2 marks]6.
Find the HCF of 30, 45, and 60.
[2 marks]7.
Using prime factorization, find the HCF of 16 and 24.
[3 marks]8.
Solve for the HCF of 35 and 49. Explain your method.
[4 marks]9.
The numbers of apples in two baskets are 18 and 24. What is the largest number of equal-sized groups you can form from both baskets?
[4 marks]10.
A factory produces boxes of 16, 24, and 40 items. What is the maximum number of boxes that can be packed so each box contains the same number of items?
[4 marks]11.
Identify the common mistake: A student finds the HCF of 18 and 24 as 12, claiming they used the difference method. Explain why this is incorrect.
[3 marks]12.
Challenge: Find the HCF of 36, 60, and 84 without prime factorization, using common factors.
[4 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet