Fact Family Add Sub Within 20 Fill Blanks — Set 37
Write the fact family for 3, 13, 16:
Show answer
Answer: 3 + 13 = 16; 13 + 3 = 16; 16 - 3 = 13; 16 - 13 = 3
- SubType
- fact-family
- Facts
- 3 + 13 = 16
- 13 + 3 = 16
- 16 - 3 = 13
- 16 - 13 = 3
- Difficulty
- normal
Write the fact family for 19, 1, 20:
Show answer
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 5, 15, 20:
Show answer
Answer: 5 + 15 = 20; 15 + 5 = 20; 20 - 5 = 15; 20 - 15 = 5
- SubType
- fact-family
- Facts
- 5 + 15 = 20
- 15 + 5 = 20
- 20 - 5 = 15
- 20 - 15 = 5
- Difficulty
- normal
Write the fact family for 1, 16, 17:
Show answer
Answer: 1 + 16 = 17; 16 + 1 = 17; 17 - 1 = 16; 17 - 16 = 1
- SubType
- fact-family
- Facts
- 1 + 16 = 17
- 16 + 1 = 17
- 17 - 1 = 16
- 17 - 16 = 1
- Difficulty
- normal
Write the fact family for 16, 3, 19:
Show answer
Answer: 16 + 3 = 19; 3 + 16 = 19; 19 - 16 = 3; 19 - 3 = 16
- SubType
- fact-family
- Facts
- 16 + 3 = 19
- 3 + 16 = 19
- 19 - 16 = 3
- 19 - 3 = 16
- Difficulty
- normal
Write the fact family for 4, 13, 17:
Show answer
Answer: 4 + 13 = 17; 13 + 4 = 17; 17 - 4 = 13; 17 - 13 = 4
- SubType
- fact-family
- Facts
- 4 + 13 = 17
- 13 + 4 = 17
- 17 - 4 = 13
- 17 - 13 = 4
- 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.