Workbook Detail
Fact Family Add Sub Within 20 Easy — Set 16
Write the fact family for 1, 19, 20:
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Answer: 1 + 19 = 20; 19 + 1 = 20; 20 - 1 = 19; 20 - 19 = 1
- SubType
- fact-family
- Facts
- 1 + 19 = 20
- 19 + 1 = 20
- 20 - 1 = 19
- 20 - 19 = 1
- Difficulty
- easy
Write the fact family for 1, 10, 11:
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Answer: 1 + 10 = 11; 10 + 1 = 11; 11 - 1 = 10; 11 - 10 = 1
- SubType
- fact-family
- Facts
- 1 + 10 = 11
- 10 + 1 = 11
- 11 - 1 = 10
- 11 - 10 = 1
- Difficulty
- easy
Write the fact family for 2, 15, 17:
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Answer: 2 + 15 = 17; 15 + 2 = 17; 17 - 2 = 15; 17 - 15 = 2
- SubType
- fact-family
- Facts
- 2 + 15 = 17
- 15 + 2 = 17
- 17 - 2 = 15
- 17 - 15 = 2
- Difficulty
- easy
Write the fact family for 3, 7, 10:
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Answer: 3 + 7 = 10; 7 + 3 = 10; 10 - 3 = 7; 10 - 7 = 3
- SubType
- fact-family
- Facts
- 3 + 7 = 10
- 7 + 3 = 10
- 10 - 3 = 7
- 10 - 7 = 3
- Difficulty
- easy
Write the fact family for 10, 1, 11:
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Answer: 10 + 1 = 11; 1 + 10 = 11; 11 - 10 = 1; 11 - 1 = 10
- SubType
- fact-family
- Facts
- 10 + 1 = 11
- 1 + 10 = 11
- 11 - 10 = 1
- 11 - 1 = 10
- 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
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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