Fact Family Add Sub Within 100 Hard — Set 89
Write the fact family for 57, 21, 78:
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Answer: 57 + 21 = 78; 21 + 57 = 78; 78 - 57 = 21; 78 - 21 = 57
- SubType
- fact-family
- Facts
- 57 + 21 = 78
- 21 + 57 = 78
- 78 - 57 = 21
- 78 - 21 = 57
- Difficulty
- hard
Write the fact family for 29, 20, 49:
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Answer: 29 + 20 = 49; 20 + 29 = 49; 49 - 29 = 20; 49 - 20 = 29
- SubType
- fact-family
- Facts
- 29 + 20 = 49
- 20 + 29 = 49
- 49 - 29 = 20
- 49 - 20 = 29
- Difficulty
- hard
Write the fact family for 4, 9, 36:
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Answer: 4 × 9 = 36; 9 × 4 = 36; 36 ÷ 4 = 9; 36 ÷ 9 = 4
- SubType
- fact-family
- Facts
- 4 × 9 = 36
- 9 × 4 = 36
- 36 ÷ 4 = 9
- 36 ÷ 9 = 4
- Difficulty
- hard
Write the fact family for 6, 7, 42:
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Answer: 6 × 7 = 42; 7 × 6 = 42; 42 ÷ 6 = 7; 42 ÷ 7 = 6
- SubType
- fact-family
- Facts
- 6 × 7 = 42
- 7 × 6 = 42
- 42 ÷ 6 = 7
- 42 ÷ 7 = 6
- Difficulty
- hard
Write the fact family for 3, 12, 36:
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Answer: 3 × 12 = 36; 12 × 3 = 36; 36 ÷ 3 = 12; 36 ÷ 12 = 3
- SubType
- fact-family
- Facts
- 3 × 12 = 36
- 12 × 3 = 36
- 36 ÷ 3 = 12
- 36 ÷ 12 = 3
- Difficulty
- hard
Write the fact family for 65, 1, 66:
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Answer: 65 + 1 = 66; 1 + 65 = 66; 66 - 65 = 1; 66 - 1 = 65
- SubType
- fact-family
- Facts
- 65 + 1 = 66
- 1 + 65 = 66
- 66 - 65 = 1
- 66 - 1 = 65
- Difficulty
- hard
Teaching Notes
Practice fact family add sub within 100 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
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Print the worksheet and complete the problems. Each set number generates a unique arrangement. Use the same set number for all students in a class for consistent assessment.
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