Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 79
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 6, 8, 48:
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Answer: 6 × 8 = 48; 8 × 6 = 48; 48 ÷ 6 = 8; 48 ÷ 8 = 6
- SubType
- fact-family
- Facts
- 6 × 8 = 48
- 8 × 6 = 48
- 48 ÷ 6 = 8
- 48 ÷ 8 = 6
- Difficulty
- hard
Write the fact family for 11, 4, 44:
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Answer: 11 × 4 = 44; 4 × 11 = 44; 44 ÷ 11 = 4; 44 ÷ 4 = 11
- SubType
- fact-family
- Facts
- 11 × 4 = 44
- 4 × 11 = 44
- 44 ÷ 11 = 4
- 44 ÷ 4 = 11
- Difficulty
- hard
Write the fact family for 4, 7, 11:
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Answer: 4 + 7 = 11; 7 + 4 = 11; 11 - 4 = 7; 11 - 7 = 4
- SubType
- fact-family
- Facts
- 4 + 7 = 11
- 7 + 4 = 11
- 11 - 4 = 7
- 11 - 7 = 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 3, 17, 20:
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Answer: 3 + 17 = 20; 17 + 3 = 20; 20 - 3 = 17; 20 - 17 = 3
- SubType
- fact-family
- Facts
- 3 + 17 = 20
- 17 + 3 = 20
- 20 - 3 = 17
- 20 - 17 = 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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