MathematicsFreePrintable
GCF Bell Work Practice
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GCF Bell Work Practice
📚 Part 1: Find the GCF
Directions: Find the Greatest Common Factor (GCF) of each pair of numbers.
1. GCF of 8 and 12 = _______
2. GCF of 15 and 25 = _______
3. GCF of 6 and 9 = _______
4. GCF of 20 and 30 = _______
5. GCF of 14 and 21 = _______
✏️ Part 2: Multiple Choice
Directions: Circle the correct answer for each question.
6. What is the GCF of 18 and 24?
3
6
9
12
7. What is the GCF of 16 and 28?
2
4
8
14
8. What is the GCF of 12 and 18?
3
6
9
12
🧠 Part 3: Challenge Problems
9. GCF of 36 and 48 = _______
10. Explain how you found the GCF of 36 and 48:
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