Fact Family Add Sub Within 20 Fill Blanks — Set 15
Write the fact family for 14, 3, 17:
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Answer: 14 + 3 = 17; 3 + 14 = 17; 17 - 14 = 3; 17 - 3 = 14
- SubType
- fact-family
- Facts
- 14 + 3 = 17
- 3 + 14 = 17
- 17 - 14 = 3
- 17 - 3 = 14
- 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 4, 1, 5:
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Answer: 4 + 1 = 5; 1 + 4 = 5; 5 - 4 = 1; 5 - 1 = 4
- SubType
- fact-family
- Facts
- 4 + 1 = 5
- 1 + 4 = 5
- 5 - 4 = 1
- 5 - 1 = 4
- Difficulty
- normal
Write the fact family for 1, 13, 14:
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Answer: 1 + 13 = 14; 13 + 1 = 14; 14 - 1 = 13; 14 - 13 = 1
- SubType
- fact-family
- Facts
- 1 + 13 = 14
- 13 + 1 = 14
- 14 - 1 = 13
- 14 - 13 = 1
- Difficulty
- normal
Write the fact family for 2, 3, 5:
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Answer: 2 + 3 = 5; 3 + 2 = 5; 5 - 2 = 3; 5 - 3 = 2
- SubType
- fact-family
- Facts
- 2 + 3 = 5
- 3 + 2 = 5
- 5 - 2 = 3
- 5 - 3 = 2
- Difficulty
- normal
Write the fact family for 1, 4, 5:
Show answer
Answer: 1 + 4 = 5; 4 + 1 = 5; 5 - 1 = 4; 5 - 4 = 1
- SubType
- fact-family
- Facts
- 1 + 4 = 5
- 4 + 1 = 5
- 5 - 1 = 4
- 5 - 4 = 1
- Difficulty
- normal
Teaching Notes
Download this free fact family add sub within 20 fill blanks 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 Fill Blanks Math Worksheet worksheet?
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Is there an answer key?
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