Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 15
Write the fact family for 3, 5, 15:
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Answer: 3 × 5 = 15; 5 × 3 = 15; 15 ÷ 3 = 5; 15 ÷ 5 = 3
- SubType
- fact-family
- Facts
- 3 × 5 = 15
- 5 × 3 = 15
- 15 ÷ 3 = 5
- 15 ÷ 5 = 3
- Difficulty
- hard
Write the fact family for 6, 9, 15:
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Answer: 6 + 9 = 15; 9 + 6 = 15; 15 - 6 = 9; 15 - 9 = 6
- SubType
- fact-family
- Facts
- 6 + 9 = 15
- 9 + 6 = 15
- 15 - 6 = 9
- 15 - 9 = 6
- Difficulty
- hard
Write the fact family for 14, 6, 20:
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Answer: 14 + 6 = 20; 6 + 14 = 20; 20 - 14 = 6; 20 - 6 = 14
- SubType
- fact-family
- Facts
- 14 + 6 = 20
- 6 + 14 = 20
- 20 - 14 = 6
- 20 - 6 = 14
- Difficulty
- hard
Write the fact family for 12, 2, 24:
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Answer: 12 × 2 = 24; 2 × 12 = 24; 24 ÷ 12 = 2; 24 ÷ 2 = 12
- SubType
- fact-family
- Facts
- 12 × 2 = 24
- 2 × 12 = 24
- 24 ÷ 12 = 2
- 24 ÷ 2 = 12
- Difficulty
- hard
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 9, 11, 99:
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Answer: 9 × 11 = 99; 11 × 9 = 99; 99 ÷ 9 = 11; 99 ÷ 11 = 9
- SubType
- fact-family
- Facts
- 9 × 11 = 99
- 11 × 9 = 99
- 99 ÷ 9 = 11
- 99 ÷ 11 = 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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