Workbook Detail
Fact Family Add Sub Within 20 Easy — Set 75
Write the fact family for 17, 1, 18:
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Answer: 17 + 1 = 18; 1 + 17 = 18; 18 - 17 = 1; 18 - 1 = 17
- SubType
- fact-family
- Facts
- 17 + 1 = 18
- 1 + 17 = 18
- 18 - 17 = 1
- 18 - 1 = 17
- Difficulty
- easy
Write the fact family for 18, 2, 20:
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Answer: 18 + 2 = 20; 2 + 18 = 20; 20 - 18 = 2; 20 - 2 = 18
- SubType
- fact-family
- Facts
- 18 + 2 = 20
- 2 + 18 = 20
- 20 - 18 = 2
- 20 - 2 = 18
- Difficulty
- easy
Write the fact family for 10, 5, 15:
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Answer: 10 + 5 = 15; 5 + 10 = 15; 15 - 10 = 5; 15 - 5 = 10
- SubType
- fact-family
- Facts
- 10 + 5 = 15
- 5 + 10 = 15
- 15 - 10 = 5
- 15 - 5 = 10
- Difficulty
- easy
Write the fact family for 2, 18, 20:
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Answer: 2 + 18 = 20; 18 + 2 = 20; 20 - 2 = 18; 20 - 18 = 2
- SubType
- fact-family
- Facts
- 2 + 18 = 20
- 18 + 2 = 20
- 20 - 2 = 18
- 20 - 18 = 2
- Difficulty
- easy
Write the fact family for 12, 1, 13:
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Answer: 12 + 1 = 13; 1 + 12 = 13; 13 - 12 = 1; 13 - 1 = 12
- SubType
- fact-family
- Facts
- 12 + 1 = 13
- 1 + 12 = 13
- 13 - 12 = 1
- 13 - 1 = 12
- Difficulty
- easy
Write the fact family for 9, 7, 16:
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Answer: 9 + 7 = 16; 7 + 9 = 16; 16 - 9 = 7; 16 - 7 = 9
- SubType
- fact-family
- Facts
- 9 + 7 = 16
- 7 + 9 = 16
- 16 - 9 = 7
- 16 - 7 = 9
- Difficulty
- easy
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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