Fact Family Add Sub Within 20 Write All — Set 55
Write the fact family for 7, 8, 15:
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Answer: 7 + 8 = 15; 8 + 7 = 15; 15 - 7 = 8; 15 - 8 = 7
- SubType
- fact-family
- Facts
- 7 + 8 = 15
- 8 + 7 = 15
- 15 - 7 = 8
- 15 - 8 = 7
- Difficulty
- normal
Write the fact family for 4, 15, 19:
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Answer: 4 + 15 = 19; 15 + 4 = 19; 19 - 4 = 15; 19 - 15 = 4
- SubType
- fact-family
- Facts
- 4 + 15 = 19
- 15 + 4 = 19
- 19 - 4 = 15
- 19 - 15 = 4
- Difficulty
- normal
Write the fact family for 12, 2, 14:
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Answer: 12 + 2 = 14; 2 + 12 = 14; 14 - 12 = 2; 14 - 2 = 12
- SubType
- fact-family
- Facts
- 12 + 2 = 14
- 2 + 12 = 14
- 14 - 12 = 2
- 14 - 2 = 12
- Difficulty
- normal
Write the fact family for 17, 2, 19:
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Answer: 17 + 2 = 19; 2 + 17 = 19; 19 - 17 = 2; 19 - 2 = 17
- SubType
- fact-family
- Facts
- 17 + 2 = 19
- 2 + 17 = 19
- 19 - 17 = 2
- 19 - 2 = 17
- Difficulty
- normal
Write the fact family for 10, 3, 13:
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Answer: 10 + 3 = 13; 3 + 10 = 13; 13 - 10 = 3; 13 - 3 = 10
- SubType
- fact-family
- Facts
- 10 + 3 = 13
- 3 + 10 = 13
- 13 - 10 = 3
- 13 - 3 = 10
- Difficulty
- normal
Write the fact family for 7, 3, 10:
Show answer
Answer: 7 + 3 = 10; 3 + 7 = 10; 10 - 7 = 3; 10 - 3 = 7
- SubType
- fact-family
- Facts
- 7 + 3 = 10
- 3 + 7 = 10
- 10 - 7 = 3
- 10 - 3 = 7
- 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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