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Factor Pairs Challenge
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Factor Pairs Challenge
📚 Part 1: Quick Checks (Multiple Choice)
1. Which of these are factor pairs of 36? (Check all that apply)
1 × 36
2 × 18
3 × 12
4 × 9
5 × 7.2
2. Which number below is a prime number?
29
39
51
3. Which list shows all factor pairs of 20?
(1,20), (2,10), (4,5)
(1,20), (2,10), (5,4), (10,2)
(1,20), (20,1)
✏️ Part 2: Short Answers & Matching
4. List all factor pairs of 48. Use the space to show workings or draw arrays.
5. Find the factor pairs of 81. Is 3 a factor? Explain briefly.
6. Match each number (left) with one correct set of factor pairs (right). Draw a line in the gap.
A. 14
B. 27
C. 30
D. 17
1. (1,17)
2. (1,14), (2,7)
3. (1,27), (3,9)
4. (1,30), (2,15), (3,10), (5,6)
7. Group name and members (write your group and who is in it):
8. Reflection: How did you check you had found all the factor pairs for a number? Write one clear step you used.
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