Workbook Detail
Fact Family Add Sub Within 20 Expert — Set 91
Write the fact family for 18, 1, 19:
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Answer: 18 + 1 = 19; 1 + 18 = 19; 19 - 18 = 1; 19 - 1 = 18
- SubType
- fact-family
- Facts
- 18 + 1 = 19
- 1 + 18 = 19
- 19 - 18 = 1
- 19 - 1 = 18
- Difficulty
- expert
Write the fact family for 2, 11, 22:
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Answer: 2 × 11 = 22; 11 × 2 = 22; 22 ÷ 2 = 11; 22 ÷ 11 = 2
- SubType
- fact-family
- Facts
- 2 × 11 = 22
- 11 × 2 = 22
- 22 ÷ 2 = 11
- 22 ÷ 11 = 2
- Difficulty
- expert
Write the fact family for 8, 8, 64:
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Answer: 8 × 8 = 64; 8 × 8 = 64; 64 ÷ 8 = 8; 64 ÷ 8 = 8
- SubType
- fact-family
- Facts
- 8 × 8 = 64
- 8 × 8 = 64
- 64 ÷ 8 = 8
- 64 ÷ 8 = 8
- Difficulty
- expert
Write the fact family for 12, 7, 19:
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Answer: 12 + 7 = 19; 7 + 12 = 19; 19 - 12 = 7; 19 - 7 = 12
- SubType
- fact-family
- Facts
- 12 + 7 = 19
- 7 + 12 = 19
- 19 - 12 = 7
- 19 - 7 = 12
- Difficulty
- expert
Write the fact family for 3, 12, 36:
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Answer: 3 × 12 = 36; 12 × 3 = 36; 36 ÷ 3 = 12; 36 ÷ 12 = 3
- SubType
- fact-family
- Facts
- 3 × 12 = 36
- 12 × 3 = 36
- 36 ÷ 3 = 12
- 36 ÷ 12 = 3
- Difficulty
- expert
Write the fact family for 3, 1, 4:
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Answer: 3 + 1 = 4; 1 + 3 = 4; 4 - 3 = 1; 4 - 1 = 3
- SubType
- fact-family
- Facts
- 3 + 1 = 4
- 1 + 3 = 4
- 4 - 3 = 1
- 4 - 1 = 3
- Difficulty
- expert
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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