Fact Family Mixed Within 20 Fill Blanks — Set 89
Write the fact family for 18, 2, 20:
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Answer: 18 + 2 = 20; 2 + 18 = 20; 20 - 18 = 2; 20 - 2 = 18
- SubType
- fact-family
- Facts
- 18 + 2 = 20
- 2 + 18 = 20
- 20 - 18 = 2
- 20 - 2 = 18
- Difficulty
- normal
Write the fact family for 9, 10, 19:
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Answer: 9 + 10 = 19; 10 + 9 = 19; 19 - 9 = 10; 19 - 10 = 9
- SubType
- fact-family
- Facts
- 9 + 10 = 19
- 10 + 9 = 19
- 19 - 9 = 10
- 19 - 10 = 9
- Difficulty
- normal
Write the fact family for 1, 2, 3:
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Answer: 1 + 2 = 3; 2 + 1 = 3; 3 - 1 = 2; 3 - 2 = 1
- SubType
- fact-family
- Facts
- 1 + 2 = 3
- 2 + 1 = 3
- 3 - 1 = 2
- 3 - 2 = 1
- Difficulty
- normal
Write the fact family for 11, 8, 19:
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Answer: 11 + 8 = 19; 8 + 11 = 19; 19 - 11 = 8; 19 - 8 = 11
- SubType
- fact-family
- Facts
- 11 + 8 = 19
- 8 + 11 = 19
- 19 - 11 = 8
- 19 - 8 = 11
- Difficulty
- normal
Write the fact family for 6, 6, 12:
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Answer: 6 + 6 = 12; 6 + 6 = 12; 12 - 6 = 6; 12 - 6 = 6
- SubType
- fact-family
- Facts
- 6 + 6 = 12
- 6 + 6 = 12
- 12 - 6 = 6
- 12 - 6 = 6
- Difficulty
- normal
Write the fact family for 11, 9, 20:
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Answer: 11 + 9 = 20; 9 + 11 = 20; 20 - 11 = 9; 20 - 9 = 11
- SubType
- fact-family
- Facts
- 11 + 9 = 20
- 9 + 11 = 20
- 20 - 11 = 9
- 20 - 9 = 11
- 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.