Fact Family Mixed Within 20 Write All — Set 13
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 6, 14, 20:
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Answer: 6 + 14 = 20; 14 + 6 = 20; 20 - 6 = 14; 20 - 14 = 6
- SubType
- fact-family
- Facts
- 6 + 14 = 20
- 14 + 6 = 20
- 20 - 6 = 14
- 20 - 14 = 6
- Difficulty
- normal
Write the fact family for 1, 18, 19:
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Answer: 1 + 18 = 19; 18 + 1 = 19; 19 - 1 = 18; 19 - 18 = 1
- SubType
- fact-family
- Facts
- 1 + 18 = 19
- 18 + 1 = 19
- 19 - 1 = 18
- 19 - 18 = 1
- Difficulty
- normal
Write the fact family for 16, 2, 18:
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Answer: 16 + 2 = 18; 2 + 16 = 18; 18 - 16 = 2; 18 - 2 = 16
- SubType
- fact-family
- Facts
- 16 + 2 = 18
- 2 + 16 = 18
- 18 - 16 = 2
- 18 - 2 = 16
- Difficulty
- normal
Write the fact family for 11, 2, 13:
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Answer: 11 + 2 = 13; 2 + 11 = 13; 13 - 11 = 2; 13 - 2 = 11
- SubType
- fact-family
- Facts
- 11 + 2 = 13
- 2 + 11 = 13
- 13 - 11 = 2
- 13 - 2 = 11
- Difficulty
- normal
Write the fact family for 15, 1, 16:
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Answer: 15 + 1 = 16; 1 + 15 = 16; 16 - 15 = 1; 16 - 1 = 15
- SubType
- fact-family
- Facts
- 15 + 1 = 16
- 1 + 15 = 16
- 16 - 15 = 1
- 16 - 1 = 15
- Difficulty
- normal
Teaching Notes
Download this free fact family mixed within 20 write all 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 Write All 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.