Fact Family Mixed Within 20 Fill Blanks — Set 11
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 1, 14, 15:
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Answer: 1 + 14 = 15; 14 + 1 = 15; 15 - 1 = 14; 15 - 14 = 1
- SubType
- fact-family
- Facts
- 1 + 14 = 15
- 14 + 1 = 15
- 15 - 1 = 14
- 15 - 14 = 1
- Difficulty
- normal
Write the fact family for 5, 8, 13:
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Answer: 5 + 8 = 13; 8 + 5 = 13; 13 - 5 = 8; 13 - 8 = 5
- SubType
- fact-family
- Facts
- 5 + 8 = 13
- 8 + 5 = 13
- 13 - 5 = 8
- 13 - 8 = 5
- 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 7, 9, 16:
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Answer: 7 + 9 = 16; 9 + 7 = 16; 16 - 7 = 9; 16 - 9 = 7
- SubType
- fact-family
- Facts
- 7 + 9 = 16
- 9 + 7 = 16
- 16 - 7 = 9
- 16 - 9 = 7
- Difficulty
- normal
Write the fact family for 13, 3, 16:
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Answer: 13 + 3 = 16; 3 + 13 = 16; 16 - 13 = 3; 16 - 3 = 13
- SubType
- fact-family
- Facts
- 13 + 3 = 16
- 3 + 13 = 16
- 16 - 13 = 3
- 16 - 3 = 13
- Difficulty
- normal
Teaching Notes
Download this free fact family mixed 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 Mixed 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.