Fact Family Mixed Within 20 Fill Blanks — Set 68
Write the fact family for 3, 17, 20:
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Answer: 3 + 17 = 20; 17 + 3 = 20; 20 - 3 = 17; 20 - 17 = 3
- SubType
- fact-family
- Facts
- 3 + 17 = 20
- 17 + 3 = 20
- 20 - 3 = 17
- 20 - 17 = 3
- Difficulty
- normal
Write the fact family for 11, 6, 17:
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Answer: 11 + 6 = 17; 6 + 11 = 17; 17 - 11 = 6; 17 - 6 = 11
- SubType
- fact-family
- Facts
- 11 + 6 = 17
- 6 + 11 = 17
- 17 - 11 = 6
- 17 - 6 = 11
- Difficulty
- normal
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 8, 2, 10:
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Answer: 8 + 2 = 10; 2 + 8 = 10; 10 - 8 = 2; 10 - 2 = 8
- SubType
- fact-family
- Facts
- 8 + 2 = 10
- 2 + 8 = 10
- 10 - 8 = 2
- 10 - 2 = 8
- 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 12, 3, 15:
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Answer: 12 + 3 = 15; 3 + 12 = 15; 15 - 12 = 3; 15 - 3 = 12
- SubType
- fact-family
- Facts
- 12 + 3 = 15
- 3 + 12 = 15
- 15 - 12 = 3
- 15 - 3 = 12
- 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.