Fact Family Add Sub Within 20 Write All — Set 87
Write the fact family for 12, 1, 13:
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Answer: 12 + 1 = 13; 1 + 12 = 13; 13 - 12 = 1; 13 - 1 = 12
- SubType
- fact-family
- Facts
- 12 + 1 = 13
- 1 + 12 = 13
- 13 - 12 = 1
- 13 - 1 = 12
- Difficulty
- normal
Write the fact family for 6, 3, 9:
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Answer: 6 + 3 = 9; 3 + 6 = 9; 9 - 6 = 3; 9 - 3 = 6
- SubType
- fact-family
- Facts
- 6 + 3 = 9
- 3 + 6 = 9
- 9 - 6 = 3
- 9 - 3 = 6
- 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 9, 5, 14:
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Answer: 9 + 5 = 14; 5 + 9 = 14; 14 - 9 = 5; 14 - 5 = 9
- SubType
- fact-family
- Facts
- 9 + 5 = 14
- 5 + 9 = 14
- 14 - 9 = 5
- 14 - 5 = 9
- Difficulty
- normal
Write the fact family for 1, 3, 4:
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Answer: 1 + 3 = 4; 3 + 1 = 4; 4 - 1 = 3; 4 - 3 = 1
- SubType
- fact-family
- Facts
- 1 + 3 = 4
- 3 + 1 = 4
- 4 - 1 = 3
- 4 - 3 = 1
- Difficulty
- normal
Write the fact family for 12, 3, 15:
Show answer
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
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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