Fact Family Add Sub Within 20 Write All — Set 36
Write the fact family for 6, 12, 18:
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Answer: 6 + 12 = 18; 12 + 6 = 18; 18 - 6 = 12; 18 - 12 = 6
- SubType
- fact-family
- Facts
- 6 + 12 = 18
- 12 + 6 = 18
- 18 - 6 = 12
- 18 - 12 = 6
- Difficulty
- normal
Write the fact family for 12, 5, 17:
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Answer: 12 + 5 = 17; 5 + 12 = 17; 17 - 12 = 5; 17 - 5 = 12
- SubType
- fact-family
- Facts
- 12 + 5 = 17
- 5 + 12 = 17
- 17 - 12 = 5
- 17 - 5 = 12
- Difficulty
- normal
Write the fact family for 13, 6, 19:
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Answer: 13 + 6 = 19; 6 + 13 = 19; 19 - 13 = 6; 19 - 6 = 13
- SubType
- fact-family
- Facts
- 13 + 6 = 19
- 6 + 13 = 19
- 19 - 13 = 6
- 19 - 6 = 13
- Difficulty
- normal
Write the fact family for 11, 6, 17:
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Answer: 11 + 6 = 17; 6 + 11 = 17; 17 - 11 = 6; 17 - 6 = 11
- SubType
- fact-family
- Facts
- 11 + 6 = 17
- 6 + 11 = 17
- 17 - 11 = 6
- 17 - 6 = 11
- Difficulty
- normal
Write the fact family for 1, 5, 6:
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Answer: 1 + 5 = 6; 5 + 1 = 6; 6 - 1 = 5; 6 - 5 = 1
- SubType
- fact-family
- Facts
- 1 + 5 = 6
- 5 + 1 = 6
- 6 - 1 = 5
- 6 - 5 = 1
- Difficulty
- normal
Write the fact family for 4, 6, 10:
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Answer: 4 + 6 = 10; 6 + 4 = 10; 10 - 4 = 6; 10 - 6 = 4
- SubType
- fact-family
- Facts
- 4 + 6 = 10
- 6 + 4 = 10
- 10 - 4 = 6
- 10 - 6 = 4
- 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.
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Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.