Workbook Detail
Fact Family Add Sub Within 20 Medium — Set 81
Write the fact family for 6, 12, 72:
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Answer: 6 × 12 = 72; 12 × 6 = 72; 72 ÷ 6 = 12; 72 ÷ 12 = 6
- SubType
- fact-family
- Facts
- 6 × 12 = 72
- 12 × 6 = 72
- 72 ÷ 6 = 12
- 72 ÷ 12 = 6
- Difficulty
- medium
Write the fact family for 15, 5, 20:
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Answer: 15 + 5 = 20; 5 + 15 = 20; 20 - 15 = 5; 20 - 5 = 15
- SubType
- fact-family
- Facts
- 15 + 5 = 20
- 5 + 15 = 20
- 20 - 15 = 5
- 20 - 5 = 15
- Difficulty
- medium
Write the fact family for 12, 9, 108:
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Answer: 12 × 9 = 108; 9 × 12 = 108; 108 ÷ 12 = 9; 108 ÷ 9 = 12
- SubType
- fact-family
- Facts
- 12 × 9 = 108
- 9 × 12 = 108
- 108 ÷ 12 = 9
- 108 ÷ 9 = 12
- Difficulty
- medium
Write the fact family for 9, 9, 18:
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Answer: 9 + 9 = 18; 9 + 9 = 18; 18 - 9 = 9; 18 - 9 = 9
- SubType
- fact-family
- Facts
- 9 + 9 = 18
- 9 + 9 = 18
- 18 - 9 = 9
- 18 - 9 = 9
- Difficulty
- medium
Write the fact family for 3, 8, 11:
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Answer: 3 + 8 = 11; 8 + 3 = 11; 11 - 3 = 8; 11 - 8 = 3
- SubType
- fact-family
- Facts
- 3 + 8 = 11
- 8 + 3 = 11
- 11 - 3 = 8
- 11 - 8 = 3
- Difficulty
- medium
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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