Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 69
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
Write the fact family for 7, 13, 20:
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Answer: 7 + 13 = 20; 13 + 7 = 20; 20 - 7 = 13; 20 - 13 = 7
- SubType
- fact-family
- Facts
- 7 + 13 = 20
- 13 + 7 = 20
- 20 - 7 = 13
- 20 - 13 = 7
- Difficulty
- hard
Write the fact family for 12, 7, 84:
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Answer: 12 × 7 = 84; 7 × 12 = 84; 84 ÷ 12 = 7; 84 ÷ 7 = 12
- SubType
- fact-family
- Facts
- 12 × 7 = 84
- 7 × 12 = 84
- 84 ÷ 12 = 7
- 84 ÷ 7 = 12
- Difficulty
- hard
Write the fact family for 7, 8, 56:
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Answer: 7 × 8 = 56; 8 × 7 = 56; 56 ÷ 7 = 8; 56 ÷ 8 = 7
- SubType
- fact-family
- Facts
- 7 × 8 = 56
- 8 × 7 = 56
- 56 ÷ 7 = 8
- 56 ÷ 8 = 7
- Difficulty
- hard
Write the fact family for 8, 9, 17:
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Answer: 8 + 9 = 17; 9 + 8 = 17; 17 - 8 = 9; 17 - 9 = 8
- SubType
- fact-family
- Facts
- 8 + 9 = 17
- 9 + 8 = 17
- 17 - 8 = 9
- 17 - 9 = 8
- Difficulty
- hard
Write the fact family for 3, 14, 17:
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Answer: 3 + 14 = 17; 14 + 3 = 17; 17 - 3 = 14; 17 - 14 = 3
- SubType
- fact-family
- Facts
- 3 + 14 = 17
- 14 + 3 = 17
- 17 - 3 = 14
- 17 - 14 = 3
- 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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