Fact Family Mixed Within 20 Fill Blanks — Set 26
Write the fact family for 1, 19, 20:
Show answer
Answer: 1 + 19 = 20; 19 + 1 = 20; 20 - 1 = 19; 20 - 19 = 1
- SubType
- fact-family
- Facts
- 1 + 19 = 20
- 19 + 1 = 20
- 20 - 1 = 19
- 20 - 19 = 1
- Difficulty
- normal
Write the fact family for 5, 6, 11:
Show answer
Answer: 5 + 6 = 11; 6 + 5 = 11; 11 - 5 = 6; 11 - 6 = 5
- SubType
- fact-family
- Facts
- 5 + 6 = 11
- 6 + 5 = 11
- 11 - 5 = 6
- 11 - 6 = 5
- Difficulty
- normal
Write the fact family for 17, 1, 18:
Show answer
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 6, 3, 9:
Show answer
Answer: 6 + 3 = 9; 3 + 6 = 9; 9 - 6 = 3; 9 - 3 = 6
- SubType
- fact-family
- Facts
- 6 + 3 = 9
- 3 + 6 = 9
- 9 - 6 = 3
- 9 - 3 = 6
- Difficulty
- normal
Write the fact family for 13, 5, 18:
Show answer
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 12, 2, 14:
Show answer
Answer: 12 + 2 = 14; 2 + 12 = 14; 14 - 12 = 2; 14 - 2 = 12
- SubType
- fact-family
- Facts
- 12 + 2 = 14
- 2 + 12 = 14
- 14 - 12 = 2
- 14 - 2 = 12
- 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.