Workbook Detail
Fact Family Add Sub Within 20 Easy — Set 77
Write the fact family for 15, 1, 16:
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Answer: 15 + 1 = 16; 1 + 15 = 16; 16 - 15 = 1; 16 - 1 = 15
- SubType
- fact-family
- Facts
- 15 + 1 = 16
- 1 + 15 = 16
- 16 - 15 = 1
- 16 - 1 = 15
- Difficulty
- easy
Write the fact family for 9, 8, 17:
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Answer: 9 + 8 = 17; 8 + 9 = 17; 17 - 9 = 8; 17 - 8 = 9
- SubType
- fact-family
- Facts
- 9 + 8 = 17
- 8 + 9 = 17
- 17 - 9 = 8
- 17 - 8 = 9
- Difficulty
- easy
Write the fact family for 10, 7, 17:
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Answer: 10 + 7 = 17; 7 + 10 = 17; 17 - 10 = 7; 17 - 7 = 10
- SubType
- fact-family
- Facts
- 10 + 7 = 17
- 7 + 10 = 17
- 17 - 10 = 7
- 17 - 7 = 10
- Difficulty
- easy
Write the fact family for 9, 10, 19:
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Answer: 9 + 10 = 19; 10 + 9 = 19; 19 - 9 = 10; 19 - 10 = 9
- SubType
- fact-family
- Facts
- 9 + 10 = 19
- 10 + 9 = 19
- 19 - 9 = 10
- 19 - 10 = 9
- Difficulty
- easy
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
- easy
Write the fact family for 19, 1, 20:
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Answer: 19 + 1 = 20; 1 + 19 = 20; 20 - 19 = 1; 20 - 1 = 19
- SubType
- fact-family
- Facts
- 19 + 1 = 20
- 1 + 19 = 20
- 20 - 19 = 1
- 20 - 1 = 19
- 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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