Workbook Detail
Fact Family Add Sub Within 20 Write All — Set 94
Write the fact family for 17, 1, 18:
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Answer: 17 + 1 = 18; 1 + 17 = 18; 18 - 17 = 1; 18 - 1 = 17
- SubType
- fact-family
- Facts
- 17 + 1 = 18
- 1 + 17 = 18
- 18 - 17 = 1
- 18 - 1 = 17
- Difficulty
- normal
Write the fact family for 1, 11, 12:
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Answer: 1 + 11 = 12; 11 + 1 = 12; 12 - 1 = 11; 12 - 11 = 1
- SubType
- fact-family
- Facts
- 1 + 11 = 12
- 11 + 1 = 12
- 12 - 1 = 11
- 12 - 11 = 1
- Difficulty
- normal
Write the fact family for 7, 10, 17:
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Answer: 7 + 10 = 17; 10 + 7 = 17; 17 - 7 = 10; 17 - 10 = 7
- SubType
- fact-family
- Facts
- 7 + 10 = 17
- 10 + 7 = 17
- 17 - 7 = 10
- 17 - 10 = 7
- Difficulty
- normal
Write the fact family for 12, 8, 20:
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Answer: 12 + 8 = 20; 8 + 12 = 20; 20 - 12 = 8; 20 - 8 = 12
- SubType
- fact-family
- Facts
- 12 + 8 = 20
- 8 + 12 = 20
- 20 - 12 = 8
- 20 - 8 = 12
- Difficulty
- normal
Write the fact family for 6, 8, 14:
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Answer: 6 + 8 = 14; 8 + 6 = 14; 14 - 6 = 8; 14 - 8 = 6
- SubType
- fact-family
- Facts
- 6 + 8 = 14
- 8 + 6 = 14
- 14 - 6 = 8
- 14 - 8 = 6
- Difficulty
- normal
Teaching Notes
Download this free fact family add sub 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 Add Sub 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?
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