Fact Family Add Sub Within 20 Write All — Set 93
Write the fact family for 11, 8, 19:
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Answer: 11 + 8 = 19; 8 + 11 = 19; 19 - 11 = 8; 19 - 8 = 11
- SubType
- fact-family
- Facts
- 11 + 8 = 19
- 8 + 11 = 19
- 19 - 11 = 8
- 19 - 8 = 11
- Difficulty
- normal
Write the fact family for 12, 6, 18:
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Answer: 12 + 6 = 18; 6 + 12 = 18; 18 - 12 = 6; 18 - 6 = 12
- SubType
- fact-family
- Facts
- 12 + 6 = 18
- 6 + 12 = 18
- 18 - 12 = 6
- 18 - 6 = 12
- Difficulty
- normal
Write the fact family for 8, 6, 14:
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Answer: 8 + 6 = 14; 6 + 8 = 14; 14 - 8 = 6; 14 - 6 = 8
- SubType
- fact-family
- Facts
- 8 + 6 = 14
- 6 + 8 = 14
- 14 - 8 = 6
- 14 - 6 = 8
- Difficulty
- normal
Write the fact family for 12, 3, 15:
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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
- normal
Write the fact family for 14, 4, 18:
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Answer: 14 + 4 = 18; 4 + 14 = 18; 18 - 14 = 4; 18 - 4 = 14
- SubType
- fact-family
- Facts
- 14 + 4 = 18
- 4 + 14 = 18
- 18 - 14 = 4
- 18 - 4 = 14
- Difficulty
- normal
Write the fact family for 18, 1, 19:
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Answer: 18 + 1 = 19; 1 + 18 = 19; 19 - 18 = 1; 19 - 1 = 18
- SubType
- fact-family
- Facts
- 18 + 1 = 19
- 1 + 18 = 19
- 19 - 18 = 1
- 19 - 1 = 18
- 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.