Fact Family Add Sub Within 20 Write All — Set 19
Write the fact family for 13, 2, 15:
Show answer
Answer: 13 + 2 = 15; 2 + 13 = 15; 15 - 13 = 2; 15 - 2 = 13
- SubType
- fact-family
- Facts
- 13 + 2 = 15
- 2 + 13 = 15
- 15 - 13 = 2
- 15 - 2 = 13
- Difficulty
- normal
Write the fact family for 8, 9, 17:
Show answer
Answer: 8 + 9 = 17; 9 + 8 = 17; 17 - 8 = 9; 17 - 9 = 8
- SubType
- fact-family
- Facts
- 8 + 9 = 17
- 9 + 8 = 17
- 17 - 8 = 9
- 17 - 9 = 8
- Difficulty
- normal
Write the fact family for 16, 3, 19:
Show answer
Answer: 16 + 3 = 19; 3 + 16 = 19; 19 - 16 = 3; 19 - 3 = 16
- SubType
- fact-family
- Facts
- 16 + 3 = 19
- 3 + 16 = 19
- 19 - 16 = 3
- 19 - 3 = 16
- Difficulty
- normal
Write the fact family for 5, 7, 12:
Show answer
Answer: 5 + 7 = 12; 7 + 5 = 12; 12 - 5 = 7; 12 - 7 = 5
- SubType
- fact-family
- Facts
- 5 + 7 = 12
- 7 + 5 = 12
- 12 - 5 = 7
- 12 - 7 = 5
- Difficulty
- normal
Write the fact family for 2, 5, 7:
Show answer
Answer: 2 + 5 = 7; 5 + 2 = 7; 7 - 2 = 5; 7 - 5 = 2
- SubType
- fact-family
- Facts
- 2 + 5 = 7
- 5 + 2 = 7
- 7 - 2 = 5
- 7 - 5 = 2
- Difficulty
- normal
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
- 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.