Fact Family Add Sub Within 20 Fill Blanks — Set 64
Write the fact family for 10, 9, 19:
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Answer: 10 + 9 = 19; 9 + 10 = 19; 19 - 10 = 9; 19 - 9 = 10
- SubType
- fact-family
- Facts
- 10 + 9 = 19
- 9 + 10 = 19
- 19 - 10 = 9
- 19 - 9 = 10
- Difficulty
- normal
Write the fact family for 14, 5, 19:
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Answer: 14 + 5 = 19; 5 + 14 = 19; 19 - 14 = 5; 19 - 5 = 14
- SubType
- fact-family
- Facts
- 14 + 5 = 19
- 5 + 14 = 19
- 19 - 14 = 5
- 19 - 5 = 14
- Difficulty
- normal
Write the fact family for 3, 2, 5:
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Answer: 3 + 2 = 5; 2 + 3 = 5; 5 - 3 = 2; 5 - 2 = 3
- SubType
- fact-family
- Facts
- 3 + 2 = 5
- 2 + 3 = 5
- 5 - 3 = 2
- 5 - 2 = 3
- Difficulty
- normal
Write the fact family for 19, 1, 20:
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Answer: 19 + 1 = 20; 1 + 19 = 20; 20 - 19 = 1; 20 - 1 = 19
- SubType
- fact-family
- Facts
- 19 + 1 = 20
- 1 + 19 = 20
- 20 - 19 = 1
- 20 - 1 = 19
- Difficulty
- normal
Write the fact family for 10, 4, 14:
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Answer: 10 + 4 = 14; 4 + 10 = 14; 14 - 10 = 4; 14 - 4 = 10
- SubType
- fact-family
- Facts
- 10 + 4 = 14
- 4 + 10 = 14
- 14 - 10 = 4
- 14 - 4 = 10
- 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
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?
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.