Fact Family Add Sub Within 20 Write All — Set 97
Write the fact family for 8, 12, 20:
Show answer
Answer: 8 + 12 = 20; 12 + 8 = 20; 20 - 8 = 12; 20 - 12 = 8
- SubType
- fact-family
- Facts
- 8 + 12 = 20
- 12 + 8 = 20
- 20 - 8 = 12
- 20 - 12 = 8
- Difficulty
- normal
Write the fact family for 1, 17, 18:
Show answer
Answer: 1 + 17 = 18; 17 + 1 = 18; 18 - 1 = 17; 18 - 17 = 1
- SubType
- fact-family
- Facts
- 1 + 17 = 18
- 17 + 1 = 18
- 18 - 1 = 17
- 18 - 17 = 1
- Difficulty
- normal
Write the fact family for 9, 10, 19:
Show answer
Answer: 9 + 10 = 19; 10 + 9 = 19; 19 - 9 = 10; 19 - 10 = 9
- SubType
- fact-family
- Facts
- 9 + 10 = 19
- 10 + 9 = 19
- 19 - 9 = 10
- 19 - 10 = 9
- Difficulty
- normal
Write the fact family for 11, 9, 20:
Show answer
Answer: 11 + 9 = 20; 9 + 11 = 20; 20 - 11 = 9; 20 - 9 = 11
- SubType
- fact-family
- Facts
- 11 + 9 = 20
- 9 + 11 = 20
- 20 - 11 = 9
- 20 - 9 = 11
- Difficulty
- normal
Write the fact family for 8, 1, 9:
Show answer
Answer: 8 + 1 = 9; 1 + 8 = 9; 9 - 8 = 1; 9 - 1 = 8
- SubType
- fact-family
- Facts
- 8 + 1 = 9
- 1 + 8 = 9
- 9 - 8 = 1
- 9 - 1 = 8
- Difficulty
- normal
Write the fact family for 10, 9, 19:
Show answer
Answer: 10 + 9 = 19; 9 + 10 = 19; 19 - 10 = 9; 19 - 9 = 10
- SubType
- fact-family
- Facts
- 10 + 9 = 19
- 9 + 10 = 19
- 19 - 10 = 9
- 19 - 9 = 10
- 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.