Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 90
Write the fact family for 4, 3, 12:
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Answer: 4 × 3 = 12; 3 × 4 = 12; 12 ÷ 4 = 3; 12 ÷ 3 = 4
- SubType
- fact-family
- Facts
- 4 × 3 = 12
- 3 × 4 = 12
- 12 ÷ 4 = 3
- 12 ÷ 3 = 4
- Difficulty
- hard
Write the fact family for 16, 3, 19:
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Answer: 16 + 3 = 19; 3 + 16 = 19; 19 - 16 = 3; 19 - 3 = 16
- SubType
- fact-family
- Facts
- 16 + 3 = 19
- 3 + 16 = 19
- 19 - 16 = 3
- 19 - 3 = 16
- Difficulty
- hard
Write the fact family for 10, 9, 90:
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Answer: 10 × 9 = 90; 9 × 10 = 90; 90 ÷ 10 = 9; 90 ÷ 9 = 10
- SubType
- fact-family
- Facts
- 10 × 9 = 90
- 9 × 10 = 90
- 90 ÷ 10 = 9
- 90 ÷ 9 = 10
- Difficulty
- hard
Write the fact family for 11, 5, 55:
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Answer: 11 × 5 = 55; 5 × 11 = 55; 55 ÷ 11 = 5; 55 ÷ 5 = 11
- SubType
- fact-family
- Facts
- 11 × 5 = 55
- 5 × 11 = 55
- 55 ÷ 11 = 5
- 55 ÷ 5 = 11
- Difficulty
- hard
Write the fact family for 15, 2, 17:
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Answer: 15 + 2 = 17; 2 + 15 = 17; 17 - 15 = 2; 17 - 2 = 15
- SubType
- fact-family
- Facts
- 15 + 2 = 17
- 2 + 15 = 17
- 17 - 15 = 2
- 17 - 2 = 15
- Difficulty
- hard
Write the fact family for 10, 5, 50:
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Answer: 10 × 5 = 50; 5 × 10 = 50; 50 ÷ 10 = 5; 50 ÷ 5 = 10
- SubType
- fact-family
- Facts
- 10 × 5 = 50
- 5 × 10 = 50
- 50 ÷ 10 = 5
- 50 ÷ 5 = 10
- 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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