Fact Family Mixed Within 20 Fill Blanks — Set 44
Write the fact family for 1, 8, 9:
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Answer: 1 + 8 = 9; 8 + 1 = 9; 9 - 1 = 8; 9 - 8 = 1
- SubType
- fact-family
- Facts
- 1 + 8 = 9
- 8 + 1 = 9
- 9 - 1 = 8
- 9 - 8 = 1
- 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 1, 17, 18:
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Answer: 1 + 17 = 18; 17 + 1 = 18; 18 - 1 = 17; 18 - 17 = 1
- SubType
- fact-family
- Facts
- 1 + 17 = 18
- 17 + 1 = 18
- 18 - 1 = 17
- 18 - 17 = 1
- Difficulty
- normal
Write the fact family for 7, 1, 8:
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Answer: 7 + 1 = 8; 1 + 7 = 8; 8 - 7 = 1; 8 - 1 = 7
- SubType
- fact-family
- Facts
- 7 + 1 = 8
- 1 + 7 = 8
- 8 - 7 = 1
- 8 - 1 = 7
- Difficulty
- normal
Write the fact family for 5, 6, 11:
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Answer: 5 + 6 = 11; 6 + 5 = 11; 11 - 5 = 6; 11 - 6 = 5
- SubType
- fact-family
- Facts
- 5 + 6 = 11
- 6 + 5 = 11
- 11 - 5 = 6
- 11 - 6 = 5
- Difficulty
- normal
Write the fact family for 2, 10, 12:
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Answer: 2 + 10 = 12; 10 + 2 = 12; 12 - 2 = 10; 12 - 10 = 2
- SubType
- fact-family
- Facts
- 2 + 10 = 12
- 10 + 2 = 12
- 12 - 2 = 10
- 12 - 10 = 2
- Difficulty
- normal
Teaching Notes
Download this free fact family mixed 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 Mixed 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.