Workbook Detail
Fact Family Add Sub Within 20 Fill Blanks — Set 31
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, 5, 17:
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Answer: 12 + 5 = 17; 5 + 12 = 17; 17 - 12 = 5; 17 - 5 = 12
- SubType
- fact-family
- Facts
- 12 + 5 = 17
- 5 + 12 = 17
- 17 - 12 = 5
- 17 - 5 = 12
- Difficulty
- normal
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 14, 3, 17:
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Answer: 14 + 3 = 17; 3 + 14 = 17; 17 - 14 = 3; 17 - 3 = 14
- SubType
- fact-family
- Facts
- 14 + 3 = 17
- 3 + 14 = 17
- 17 - 14 = 3
- 17 - 3 = 14
- Difficulty
- normal
Write the fact family for 16, 4, 20:
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Answer: 16 + 4 = 20; 4 + 16 = 20; 20 - 16 = 4; 20 - 4 = 16
- SubType
- fact-family
- Facts
- 16 + 4 = 20
- 4 + 16 = 20
- 20 - 16 = 4
- 20 - 4 = 16
- 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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