Fact Family Add Sub Within 20 Write All — Set 20
Write the fact family for 7, 13, 20:
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Answer: 7 + 13 = 20; 13 + 7 = 20; 20 - 7 = 13; 20 - 13 = 7
- SubType
- fact-family
- Facts
- 7 + 13 = 20
- 13 + 7 = 20
- 20 - 7 = 13
- 20 - 13 = 7
- Difficulty
- normal
Write the fact family for 5, 5, 10:
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Answer: 5 + 5 = 10; 5 + 5 = 10; 10 - 5 = 5; 10 - 5 = 5
- SubType
- fact-family
- Facts
- 5 + 5 = 10
- 5 + 5 = 10
- 10 - 5 = 5
- 10 - 5 = 5
- Difficulty
- normal
Write the fact family for 5, 10, 15:
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Answer: 5 + 10 = 15; 10 + 5 = 15; 15 - 5 = 10; 15 - 10 = 5
- SubType
- fact-family
- Facts
- 5 + 10 = 15
- 10 + 5 = 15
- 15 - 5 = 10
- 15 - 10 = 5
- Difficulty
- normal
Write the fact family for 5, 14, 19:
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Answer: 5 + 14 = 19; 14 + 5 = 19; 19 - 5 = 14; 19 - 14 = 5
- SubType
- fact-family
- Facts
- 5 + 14 = 19
- 14 + 5 = 19
- 19 - 5 = 14
- 19 - 14 = 5
- Difficulty
- normal
Write the fact family for 15, 5, 20:
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Answer: 15 + 5 = 20; 5 + 15 = 20; 20 - 15 = 5; 20 - 5 = 15
- SubType
- fact-family
- Facts
- 15 + 5 = 20
- 5 + 15 = 20
- 20 - 15 = 5
- 20 - 5 = 15
- Difficulty
- normal
Write the fact family for 5, 15, 20:
Show answer
Answer: 5 + 15 = 20; 15 + 5 = 20; 20 - 5 = 15; 20 - 15 = 5
- SubType
- fact-family
- Facts
- 5 + 15 = 20
- 15 + 5 = 20
- 20 - 5 = 15
- 20 - 15 = 5
- 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.