Fact Family Mixed Within 20 Fill Blanks — Set 23
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 13, 1, 14:
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Answer: 13 + 1 = 14; 1 + 13 = 14; 14 - 13 = 1; 14 - 1 = 13
- SubType
- fact-family
- Facts
- 13 + 1 = 14
- 1 + 13 = 14
- 14 - 13 = 1
- 14 - 1 = 13
- 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, 3, 18:
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Answer: 15 + 3 = 18; 3 + 15 = 18; 18 - 15 = 3; 18 - 3 = 15
- SubType
- fact-family
- Facts
- 15 + 3 = 18
- 3 + 15 = 18
- 18 - 15 = 3
- 18 - 3 = 15
- Difficulty
- normal
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 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
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.