Fact Family Mixed Within 20 Fill Blanks — Set 43
Write the fact family for 4, 2, 6:
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Answer: 4 + 2 = 6; 2 + 4 = 6; 6 - 4 = 2; 6 - 2 = 4
- SubType
- fact-family
- Facts
- 4 + 2 = 6
- 2 + 4 = 6
- 6 - 4 = 2
- 6 - 2 = 4
- Difficulty
- normal
Write the fact family for 14, 4, 18:
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Answer: 14 + 4 = 18; 4 + 14 = 18; 18 - 14 = 4; 18 - 4 = 14
- SubType
- fact-family
- Facts
- 14 + 4 = 18
- 4 + 14 = 18
- 18 - 14 = 4
- 18 - 4 = 14
- Difficulty
- normal
Write the fact family for 10, 1, 11:
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Answer: 10 + 1 = 11; 1 + 10 = 11; 11 - 10 = 1; 11 - 1 = 10
- SubType
- fact-family
- Facts
- 10 + 1 = 11
- 1 + 10 = 11
- 11 - 10 = 1
- 11 - 1 = 10
- Difficulty
- normal
Write the fact family for 13, 5, 18:
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Answer: 13 + 5 = 18; 5 + 13 = 18; 18 - 13 = 5; 18 - 5 = 13
- SubType
- fact-family
- Facts
- 13 + 5 = 18
- 5 + 13 = 18
- 18 - 13 = 5
- 18 - 5 = 13
- 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 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
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.