Final Answer:
1. Factors of 8: {1, 2, 4, 8}
Factors of 12: {1, 2, 3, 4, 6, 12}
Common factors (intersection): {1, 2, 4}
→ Blue only (8 only): {8}
→ Green only (12 only): {3, 6, 12}
→ Overlap: {1, 2, 4}
2. Factors of 24: {1, 2, 3, 4, 6, 8, 12, 24}
Factors of 18: {1, 2, 3, 6, 9, 18}
Common: {1, 2, 3, 6}
→ Blue only: {4, 8, 12, 24}
→ Green only: {9, 18}
→ Overlap: {1, 2, 3, 6}
3. Factors of 12: {1, 2, 3, 4, 6, 12}
Factors of 36: {1, 2, 3, 4, 6, 9, 12, 18, 36}
Common: {1, 2, 3, 4, 6, 12}
→ Blue only: {}
→ Green only: {9, 18, 36}
→ Overlap: {1, 2, 3, 4, 6, 12}
4. Factors of 21: {1, 3, 7, 21}
Factors of 24: {1, 2, 3, 4, 6, 8, 12, 24}
Common: {1, 3}
→ Blue only: {7, 21}
→ Green only: {2, 4, 6, 8, 12, 24}
→ Overlap: {1, 3}
5. Factors of 20: {1, 2, 4, 5, 10, 20}
Factors of 16: {1, 2, 4, 8, 16}
Common: {1, 2, 4}
→ Blue only: {5, 10, 20}
→ Green only: {8, 16}
→ Overlap: {1, 2, 4}
6. Factors of 16: {1, 2, 4, 8, 16}
Factors of 24: {1, 2, 3, 4, 6, 8, 12, 24}
Common: {1, 2, 4, 8}
→ Blue only: {16}
→ Green only: {3, 6, 12, 24}
→ Overlap: {1, 2, 4, 8}
Parent Tip: Review the logic above to help your child master the concept of pairs of factors worksheet.