Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 94
Write the fact family for 15, 1, 16:
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Answer: 15 + 1 = 16; 1 + 15 = 16; 16 - 15 = 1; 16 - 1 = 15
- SubType
- fact-family
- Facts
- 15 + 1 = 16
- 1 + 15 = 16
- 16 - 15 = 1
- 16 - 1 = 15
- Difficulty
- hard
Write the fact family for 14, 3, 17:
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Answer: 14 + 3 = 17; 3 + 14 = 17; 17 - 14 = 3; 17 - 3 = 14
- SubType
- fact-family
- Facts
- 14 + 3 = 17
- 3 + 14 = 17
- 17 - 14 = 3
- 17 - 3 = 14
- 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 4, 5, 9:
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Answer: 4 + 5 = 9; 5 + 4 = 9; 9 - 4 = 5; 9 - 5 = 4
- SubType
- fact-family
- Facts
- 4 + 5 = 9
- 5 + 4 = 9
- 9 - 4 = 5
- 9 - 5 = 4
- Difficulty
- hard
Write the fact family for 17, 1, 18:
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Answer: 17 + 1 = 18; 1 + 17 = 18; 18 - 17 = 1; 18 - 1 = 17
- SubType
- fact-family
- Facts
- 17 + 1 = 18
- 1 + 17 = 18
- 18 - 17 = 1
- 18 - 1 = 17
- 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
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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