Fact Family Mixed Within 20 Fill Blanks — Set 25
Write the fact family for 5, 15, 20:
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Answer: 5 + 15 = 20; 15 + 5 = 20; 20 - 5 = 15; 20 - 15 = 5
- SubType
- fact-family
- Facts
- 5 + 15 = 20
- 15 + 5 = 20
- 20 - 5 = 15
- 20 - 15 = 5
- Difficulty
- normal
Write the fact family for 1, 7, 8:
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Answer: 1 + 7 = 8; 7 + 1 = 8; 8 - 1 = 7; 8 - 7 = 1
- SubType
- fact-family
- Facts
- 1 + 7 = 8
- 7 + 1 = 8
- 8 - 1 = 7
- 8 - 7 = 1
- Difficulty
- normal
Write the fact family for 2, 15, 17:
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Answer: 2 + 15 = 17; 15 + 2 = 17; 17 - 2 = 15; 17 - 15 = 2
- SubType
- fact-family
- Facts
- 2 + 15 = 17
- 15 + 2 = 17
- 17 - 2 = 15
- 17 - 15 = 2
- Difficulty
- normal
Write the fact family for 7, 3, 10:
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Answer: 7 + 3 = 10; 3 + 7 = 10; 10 - 7 = 3; 10 - 3 = 7
- SubType
- fact-family
- Facts
- 7 + 3 = 10
- 3 + 7 = 10
- 10 - 7 = 3
- 10 - 3 = 7
- 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 3, 10, 13:
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Answer: 3 + 10 = 13; 10 + 3 = 13; 13 - 3 = 10; 13 - 10 = 3
- SubType
- fact-family
- Facts
- 3 + 10 = 13
- 10 + 3 = 13
- 13 - 3 = 10
- 13 - 10 = 3
- 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.