Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 84
Write the fact family for 12, 8, 20:
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Answer: 12 + 8 = 20; 8 + 12 = 20; 20 - 12 = 8; 20 - 8 = 12
- SubType
- fact-family
- Facts
- 12 + 8 = 20
- 8 + 12 = 20
- 20 - 12 = 8
- 20 - 8 = 12
- Difficulty
- hard
Write the fact family for 4, 10, 14:
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Answer: 4 + 10 = 14; 10 + 4 = 14; 14 - 4 = 10; 14 - 10 = 4
- SubType
- fact-family
- Facts
- 4 + 10 = 14
- 10 + 4 = 14
- 14 - 4 = 10
- 14 - 10 = 4
- Difficulty
- hard
Write the fact family for 4, 7, 28:
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Answer: 4 × 7 = 28; 7 × 4 = 28; 28 ÷ 4 = 7; 28 ÷ 7 = 4
- SubType
- fact-family
- Facts
- 4 × 7 = 28
- 7 × 4 = 28
- 28 ÷ 4 = 7
- 28 ÷ 7 = 4
- Difficulty
- hard
Write the fact family for 11, 7, 77:
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Answer: 11 × 7 = 77; 7 × 11 = 77; 77 ÷ 11 = 7; 77 ÷ 7 = 11
- SubType
- fact-family
- Facts
- 11 × 7 = 77
- 7 × 11 = 77
- 77 ÷ 11 = 7
- 77 ÷ 7 = 11
- 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 9, 10, 90:
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Answer: 9 × 10 = 90; 10 × 9 = 90; 90 ÷ 9 = 10; 90 ÷ 10 = 9
- SubType
- fact-family
- Facts
- 9 × 10 = 90
- 10 × 9 = 90
- 90 ÷ 9 = 10
- 90 ÷ 10 = 9
- 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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