Workbook Detail
Fact Family Add Sub Within 20 Medium — Set 17
Write the fact family for 3, 9, 12:
Show answer
Answer: 3 + 9 = 12; 9 + 3 = 12; 12 - 3 = 9; 12 - 9 = 3
- SubType
- fact-family
- Facts
- 3 + 9 = 12
- 9 + 3 = 12
- 12 - 3 = 9
- 12 - 9 = 3
- Difficulty
- medium
Write the fact family for 12, 3, 15:
Show answer
Answer: 12 + 3 = 15; 3 + 12 = 15; 15 - 12 = 3; 15 - 3 = 12
- SubType
- fact-family
- Facts
- 12 + 3 = 15
- 3 + 12 = 15
- 15 - 12 = 3
- 15 - 3 = 12
- Difficulty
- medium
Write the fact family for 12, 7, 84:
Show answer
Answer: 12 × 7 = 84; 7 × 12 = 84; 84 ÷ 12 = 7; 84 ÷ 7 = 12
- SubType
- fact-family
- Facts
- 12 × 7 = 84
- 7 × 12 = 84
- 84 ÷ 12 = 7
- 84 ÷ 7 = 12
- Difficulty
- medium
Write the fact family for 10, 5, 50:
Show answer
Answer: 10 × 5 = 50; 5 × 10 = 50; 50 ÷ 10 = 5; 50 ÷ 5 = 10
- SubType
- fact-family
- Facts
- 10 × 5 = 50
- 5 × 10 = 50
- 50 ÷ 10 = 5
- 50 ÷ 5 = 10
- Difficulty
- medium
Write the fact family for 11, 8, 88:
Show answer
Answer: 11 × 8 = 88; 8 × 11 = 88; 88 ÷ 11 = 8; 88 ÷ 8 = 11
- SubType
- fact-family
- Facts
- 11 × 8 = 88
- 8 × 11 = 88
- 88 ÷ 11 = 8
- 88 ÷ 8 = 11
- Difficulty
- medium
Write the fact family for 11, 6, 66:
Show answer
Answer: 11 × 6 = 66; 6 × 11 = 66; 66 ÷ 11 = 6; 66 ÷ 6 = 11
- SubType
- fact-family
- Facts
- 11 × 6 = 66
- 6 × 11 = 66
- 66 ÷ 11 = 6
- 66 ÷ 6 = 11
- Difficulty
- medium
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Fact Family Add Sub Within 20 Medium Worksheets worksheet?
Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.