Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 51
Write the fact family for 15, 4, 19:
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Answer: 15 + 4 = 19; 4 + 15 = 19; 19 - 15 = 4; 19 - 4 = 15
- SubType
- fact-family
- Facts
- 15 + 4 = 19
- 4 + 15 = 19
- 19 - 15 = 4
- 19 - 4 = 15
- Difficulty
- hard
Write the fact family for 8, 11, 88:
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Answer: 8 × 11 = 88; 11 × 8 = 88; 88 ÷ 8 = 11; 88 ÷ 11 = 8
- SubType
- fact-family
- Facts
- 8 × 11 = 88
- 11 × 8 = 88
- 88 ÷ 8 = 11
- 88 ÷ 11 = 8
- Difficulty
- hard
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
- hard
Write the fact family for 11, 3, 33:
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Answer: 11 × 3 = 33; 3 × 11 = 33; 33 ÷ 11 = 3; 33 ÷ 3 = 11
- SubType
- fact-family
- Facts
- 11 × 3 = 33
- 3 × 11 = 33
- 33 ÷ 11 = 3
- 33 ÷ 3 = 11
- Difficulty
- hard
Write the fact family for 11, 8, 88:
Show answer
Answer: 11 × 8 = 88; 8 × 11 = 88; 88 ÷ 11 = 8; 88 ÷ 8 = 11
- SubType
- fact-family
- Facts
- 11 × 8 = 88
- 8 × 11 = 88
- 88 ÷ 11 = 8
- 88 ÷ 8 = 11
- Difficulty
- hard
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
- hard
Teaching Notes
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