Workbook Detail
Fact Family Add Sub Within 20 Expert — Set 100
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
- expert
Write the fact family for 2, 11, 22:
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Answer: 2 × 11 = 22; 11 × 2 = 22; 22 ÷ 2 = 11; 22 ÷ 11 = 2
- SubType
- fact-family
- Facts
- 2 × 11 = 22
- 11 × 2 = 22
- 22 ÷ 2 = 11
- 22 ÷ 11 = 2
- Difficulty
- expert
Write the fact family for 7, 6, 13:
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Answer: 7 + 6 = 13; 6 + 7 = 13; 13 - 7 = 6; 13 - 6 = 7
- SubType
- fact-family
- Facts
- 7 + 6 = 13
- 6 + 7 = 13
- 13 - 7 = 6
- 13 - 6 = 7
- Difficulty
- expert
Write the fact family for 2, 5, 10:
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Answer: 2 × 5 = 10; 5 × 2 = 10; 10 ÷ 2 = 5; 10 ÷ 5 = 2
- SubType
- fact-family
- Facts
- 2 × 5 = 10
- 5 × 2 = 10
- 10 ÷ 2 = 5
- 10 ÷ 5 = 2
- Difficulty
- expert
Write the fact family for 2, 18, 20:
Show answer
Answer: 2 + 18 = 20; 18 + 2 = 20; 20 - 2 = 18; 20 - 18 = 2
- SubType
- fact-family
- Facts
- 2 + 18 = 20
- 18 + 2 = 20
- 20 - 2 = 18
- 20 - 18 = 2
- Difficulty
- expert
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
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