Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 34
Write the fact family for 2, 10, 20:
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Answer: 2 × 10 = 20; 10 × 2 = 20; 20 ÷ 2 = 10; 20 ÷ 10 = 2
- SubType
- fact-family
- Facts
- 2 × 10 = 20
- 10 × 2 = 20
- 20 ÷ 2 = 10
- 20 ÷ 10 = 2
- Difficulty
- hard
Write the fact family for 10, 11, 110:
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Answer: 10 × 11 = 110; 11 × 10 = 110; 110 ÷ 10 = 11; 110 ÷ 11 = 10
- SubType
- fact-family
- Facts
- 10 × 11 = 110
- 11 × 10 = 110
- 110 ÷ 10 = 11
- 110 ÷ 11 = 10
- Difficulty
- hard
Write the fact family for 9, 3, 27:
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Answer: 9 × 3 = 27; 3 × 9 = 27; 27 ÷ 9 = 3; 27 ÷ 3 = 9
- SubType
- fact-family
- Facts
- 9 × 3 = 27
- 3 × 9 = 27
- 27 ÷ 9 = 3
- 27 ÷ 3 = 9
- Difficulty
- hard
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
- hard
Write the fact family for 9, 9, 81:
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Answer: 9 × 9 = 81; 9 × 9 = 81; 81 ÷ 9 = 9; 81 ÷ 9 = 9
- SubType
- fact-family
- Facts
- 9 × 9 = 81
- 9 × 9 = 81
- 81 ÷ 9 = 9
- 81 ÷ 9 = 9
- Difficulty
- hard
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
- hard
Teaching Notes
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