Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 66
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, 5, 13:
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Answer: 8 + 5 = 13; 5 + 8 = 13; 13 - 8 = 5; 13 - 5 = 8
- SubType
- fact-family
- Facts
- 8 + 5 = 13
- 5 + 8 = 13
- 13 - 8 = 5
- 13 - 5 = 8
- Difficulty
- hard
Write the fact family for 16, 1, 17:
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Answer: 16 + 1 = 17; 1 + 16 = 17; 17 - 16 = 1; 17 - 1 = 16
- SubType
- fact-family
- Facts
- 16 + 1 = 17
- 1 + 16 = 17
- 17 - 16 = 1
- 17 - 1 = 16
- Difficulty
- hard
Write the fact family for 7, 7, 49:
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Answer: 7 × 7 = 49; 7 × 7 = 49; 49 ÷ 7 = 7; 49 ÷ 7 = 7
- SubType
- fact-family
- Facts
- 7 × 7 = 49
- 7 × 7 = 49
- 49 ÷ 7 = 7
- 49 ÷ 7 = 7
- Difficulty
- hard
Write the fact family for 2, 3, 6:
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Answer: 2 × 3 = 6; 3 × 2 = 6; 6 ÷ 2 = 3; 6 ÷ 3 = 2
- SubType
- fact-family
- Facts
- 2 × 3 = 6
- 3 × 2 = 6
- 6 ÷ 2 = 3
- 6 ÷ 3 = 2
- Difficulty
- hard
Write the fact family for 10, 5, 50:
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Answer: 10 × 5 = 50; 5 × 10 = 50; 50 ÷ 10 = 5; 50 ÷ 5 = 10
- SubType
- fact-family
- Facts
- 10 × 5 = 50
- 5 × 10 = 50
- 50 ÷ 10 = 5
- 50 ÷ 5 = 10
- Difficulty
- hard
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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