Fact Family Add Sub Within 20 Fill Blanks — Set 98
Write the fact family for 10, 6, 16:
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Answer: 10 + 6 = 16; 6 + 10 = 16; 16 - 10 = 6; 16 - 6 = 10
- SubType
- fact-family
- Facts
- 10 + 6 = 16
- 6 + 10 = 16
- 16 - 10 = 6
- 16 - 6 = 10
- Difficulty
- normal
Write the fact family for 10, 10, 20:
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Answer: 10 + 10 = 20; 10 + 10 = 20; 20 - 10 = 10; 20 - 10 = 10
- SubType
- fact-family
- Facts
- 10 + 10 = 20
- 10 + 10 = 20
- 20 - 10 = 10
- 20 - 10 = 10
- Difficulty
- normal
Write the fact family for 8, 6, 14:
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Answer: 8 + 6 = 14; 6 + 8 = 14; 14 - 8 = 6; 14 - 6 = 8
- SubType
- fact-family
- Facts
- 8 + 6 = 14
- 6 + 8 = 14
- 14 - 8 = 6
- 14 - 6 = 8
- Difficulty
- normal
Write the fact family for 8, 4, 12:
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Answer: 8 + 4 = 12; 4 + 8 = 12; 12 - 8 = 4; 12 - 4 = 8
- SubType
- fact-family
- Facts
- 8 + 4 = 12
- 4 + 8 = 12
- 12 - 8 = 4
- 12 - 4 = 8
- Difficulty
- normal
Write the fact family for 2, 6, 8:
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Answer: 2 + 6 = 8; 6 + 2 = 8; 8 - 2 = 6; 8 - 6 = 2
- SubType
- fact-family
- Facts
- 2 + 6 = 8
- 6 + 2 = 8
- 8 - 2 = 6
- 8 - 6 = 2
- Difficulty
- normal
Write the fact family for 1, 3, 4:
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Answer: 1 + 3 = 4; 3 + 1 = 4; 4 - 1 = 3; 4 - 3 = 1
- SubType
- fact-family
- Facts
- 1 + 3 = 4
- 3 + 1 = 4
- 4 - 1 = 3
- 4 - 3 = 1
- 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?
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.