Workbook Detail
Fact Family Add Sub Within 20 Expert — Set 81
Write the fact family for 4, 2, 8:
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Answer: 4 × 2 = 8; 2 × 4 = 8; 8 ÷ 4 = 2; 8 ÷ 2 = 4
- SubType
- fact-family
- Facts
- 4 × 2 = 8
- 2 × 4 = 8
- 8 ÷ 4 = 2
- 8 ÷ 2 = 4
- Difficulty
- expert
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
- expert
Write the fact family for 10, 8, 18:
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Answer: 10 + 8 = 18; 8 + 10 = 18; 18 - 10 = 8; 18 - 8 = 10
- SubType
- fact-family
- Facts
- 10 + 8 = 18
- 8 + 10 = 18
- 18 - 10 = 8
- 18 - 8 = 10
- Difficulty
- expert
Write the fact family for 7, 9, 16:
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Answer: 7 + 9 = 16; 9 + 7 = 16; 16 - 7 = 9; 16 - 9 = 7
- SubType
- fact-family
- Facts
- 7 + 9 = 16
- 9 + 7 = 16
- 16 - 7 = 9
- 16 - 9 = 7
- Difficulty
- expert
Write the fact family for 9, 9, 81:
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Answer: 9 × 9 = 81; 9 × 9 = 81; 81 ÷ 9 = 9; 81 ÷ 9 = 9
- SubType
- fact-family
- Facts
- 9 × 9 = 81
- 9 × 9 = 81
- 81 ÷ 9 = 9
- 81 ÷ 9 = 9
- Difficulty
- expert
Write the fact family for 16, 2, 18:
Show answer
Answer: 16 + 2 = 18; 2 + 16 = 18; 18 - 16 = 2; 18 - 2 = 16
- SubType
- fact-family
- Facts
- 16 + 2 = 18
- 2 + 16 = 18
- 18 - 16 = 2
- 18 - 2 = 16
- 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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