Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 100
Write the fact family for 17, 2, 19:
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Answer: 17 + 2 = 19; 2 + 17 = 19; 19 - 17 = 2; 19 - 2 = 17
- SubType
- fact-family
- Facts
- 17 + 2 = 19
- 2 + 17 = 19
- 19 - 17 = 2
- 19 - 2 = 17
- Difficulty
- hard
Write the fact family for 19, 1, 20:
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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
- hard
Write the fact family for 10, 6, 60:
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Answer: 10 × 6 = 60; 6 × 10 = 60; 60 ÷ 10 = 6; 60 ÷ 6 = 10
- SubType
- fact-family
- Facts
- 10 × 6 = 60
- 6 × 10 = 60
- 60 ÷ 10 = 6
- 60 ÷ 6 = 10
- Difficulty
- hard
Write the fact family for 6, 4, 10:
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Answer: 6 + 4 = 10; 4 + 6 = 10; 10 - 6 = 4; 10 - 4 = 6
- SubType
- fact-family
- Facts
- 6 + 4 = 10
- 4 + 6 = 10
- 10 - 6 = 4
- 10 - 4 = 6
- Difficulty
- hard
Write the fact family for 3, 3, 9:
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Answer: 3 × 3 = 9; 3 × 3 = 9; 9 ÷ 3 = 3; 9 ÷ 3 = 3
- SubType
- fact-family
- Facts
- 3 × 3 = 9
- 3 × 3 = 9
- 9 ÷ 3 = 3
- 9 ÷ 3 = 3
- Difficulty
- hard
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
- hard
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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