Workbook Detail
Fact Family Add Sub Within 20 Expert — Set 27
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 9, 3, 27:
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Answer: 9 × 3 = 27; 3 × 9 = 27; 27 ÷ 9 = 3; 27 ÷ 3 = 9
- SubType
- fact-family
- Facts
- 9 × 3 = 27
- 3 × 9 = 27
- 27 ÷ 9 = 3
- 27 ÷ 3 = 9
- Difficulty
- expert
Write the fact family for 13, 6, 19:
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Answer: 13 + 6 = 19; 6 + 13 = 19; 19 - 13 = 6; 19 - 6 = 13
- SubType
- fact-family
- Facts
- 13 + 6 = 19
- 6 + 13 = 19
- 19 - 13 = 6
- 19 - 6 = 13
- Difficulty
- expert
Write the fact family for 17, 3, 20:
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Answer: 17 + 3 = 20; 3 + 17 = 20; 20 - 17 = 3; 20 - 3 = 17
- SubType
- fact-family
- Facts
- 17 + 3 = 20
- 3 + 17 = 20
- 20 - 17 = 3
- 20 - 3 = 17
- Difficulty
- expert
Write the fact family for 12, 1, 13:
Show answer
Answer: 12 + 1 = 13; 1 + 12 = 13; 13 - 12 = 1; 13 - 1 = 12
- SubType
- fact-family
- Facts
- 12 + 1 = 13
- 1 + 12 = 13
- 13 - 12 = 1
- 13 - 1 = 12
- Difficulty
- expert
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
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