Fact Family Add Sub Within 20 Write All — Set 99
Write the fact family for 2, 15, 17:
Show answer
Answer: 2 + 15 = 17; 15 + 2 = 17; 17 - 2 = 15; 17 - 15 = 2
- SubType
- fact-family
- Facts
- 2 + 15 = 17
- 15 + 2 = 17
- 17 - 2 = 15
- 17 - 15 = 2
- Difficulty
- normal
Write the fact family for 16, 2, 18:
Show answer
Answer: 16 + 2 = 18; 2 + 16 = 18; 18 - 16 = 2; 18 - 2 = 16
- SubType
- fact-family
- Facts
- 16 + 2 = 18
- 2 + 16 = 18
- 18 - 16 = 2
- 18 - 2 = 16
- Difficulty
- normal
Write the fact family for 14, 2, 16:
Show answer
Answer: 14 + 2 = 16; 2 + 14 = 16; 16 - 14 = 2; 16 - 2 = 14
- SubType
- fact-family
- Facts
- 14 + 2 = 16
- 2 + 14 = 16
- 16 - 14 = 2
- 16 - 2 = 14
- Difficulty
- normal
Write the fact family for 6, 2, 8:
Show answer
Answer: 6 + 2 = 8; 2 + 6 = 8; 8 - 6 = 2; 8 - 2 = 6
- SubType
- fact-family
- Facts
- 6 + 2 = 8
- 2 + 6 = 8
- 8 - 6 = 2
- 8 - 2 = 6
- Difficulty
- normal
Write the fact family for 14, 1, 15:
Show answer
Answer: 14 + 1 = 15; 1 + 14 = 15; 15 - 14 = 1; 15 - 1 = 14
- SubType
- fact-family
- Facts
- 14 + 1 = 15
- 1 + 14 = 15
- 15 - 14 = 1
- 15 - 1 = 14
- Difficulty
- normal
Write the fact family for 9, 3, 12:
Show answer
Answer: 9 + 3 = 12; 3 + 9 = 12; 12 - 9 = 3; 12 - 3 = 9
- SubType
- fact-family
- Facts
- 9 + 3 = 12
- 3 + 9 = 12
- 12 - 9 = 3
- 12 - 3 = 9
- Difficulty
- normal
Teaching Notes
Download this free fact family add sub within 20 write all math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Frequently Asked Questions
How do I use this Fact Family Add Sub Within 20 Write All Math Worksheet 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.