Workbook Detail
Fact Family Add Sub Within 20 Fill Blanks — Set 76
Write the fact family for 7, 11, 18:
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Answer: 7 + 11 = 18; 11 + 7 = 18; 18 - 7 = 11; 18 - 11 = 7
- SubType
- fact-family
- Facts
- 7 + 11 = 18
- 11 + 7 = 18
- 18 - 7 = 11
- 18 - 11 = 7
- Difficulty
- normal
Write the fact family for 18, 1, 19:
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Answer: 18 + 1 = 19; 1 + 18 = 19; 19 - 18 = 1; 19 - 1 = 18
- SubType
- fact-family
- Facts
- 18 + 1 = 19
- 1 + 18 = 19
- 19 - 18 = 1
- 19 - 1 = 18
- 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 11, 1, 12:
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Answer: 11 + 1 = 12; 1 + 11 = 12; 12 - 11 = 1; 12 - 1 = 11
- SubType
- fact-family
- Facts
- 11 + 1 = 12
- 1 + 11 = 12
- 12 - 11 = 1
- 12 - 1 = 11
- Difficulty
- normal
Write the fact family for 8, 9, 17:
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Answer: 8 + 9 = 17; 9 + 8 = 17; 17 - 8 = 9; 17 - 9 = 8
- SubType
- fact-family
- Facts
- 8 + 9 = 17
- 9 + 8 = 17
- 17 - 8 = 9
- 17 - 9 = 8
- Difficulty
- normal
Teaching Notes
Download this free fact family add sub 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 Add Sub Within 20 Fill Blanks Math Worksheet worksheet?
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Is there an answer key?
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