Workbook Detail
Fact Family Add Sub Within 20 Write All — Set 31
Write the fact family for 17, 2, 19:
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Answer: 17 + 2 = 19; 2 + 17 = 19; 19 - 17 = 2; 19 - 2 = 17
- SubType
- fact-family
- Facts
- 17 + 2 = 19
- 2 + 17 = 19
- 19 - 17 = 2
- 19 - 2 = 17
- Difficulty
- normal
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
- normal
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
- normal
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
- normal
Teaching Notes
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