Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 91
Write the fact family for 4, 12, 48:
Show answer
Answer: 4 × 12 = 48; 12 × 4 = 48; 48 ÷ 4 = 12; 48 ÷ 12 = 4
- SubType
- fact-family
- Facts
- 4 × 12 = 48
- 12 × 4 = 48
- 48 ÷ 4 = 12
- 48 ÷ 12 = 4
- Difficulty
- hard
Write the fact family for 2, 12, 24:
Show answer
Answer: 2 × 12 = 24; 12 × 2 = 24; 24 ÷ 2 = 12; 24 ÷ 12 = 2
- SubType
- fact-family
- Facts
- 2 × 12 = 24
- 12 × 2 = 24
- 24 ÷ 2 = 12
- 24 ÷ 12 = 2
- Difficulty
- hard
Write the fact family for 1, 11, 12:
Show answer
Answer: 1 + 11 = 12; 11 + 1 = 12; 12 - 1 = 11; 12 - 11 = 1
- SubType
- fact-family
- Facts
- 1 + 11 = 12
- 11 + 1 = 12
- 12 - 1 = 11
- 12 - 11 = 1
- Difficulty
- hard
Write the fact family for 11, 9, 20:
Show answer
Answer: 11 + 9 = 20; 9 + 11 = 20; 20 - 11 = 9; 20 - 9 = 11
- SubType
- fact-family
- Facts
- 11 + 9 = 20
- 9 + 11 = 20
- 20 - 11 = 9
- 20 - 9 = 11
- Difficulty
- hard
Write the fact family for 9, 9, 81:
Show answer
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 5, 8, 40:
Show answer
Answer: 5 × 8 = 40; 8 × 5 = 40; 40 ÷ 5 = 8; 40 ÷ 8 = 5
- SubType
- fact-family
- Facts
- 5 × 8 = 40
- 8 × 5 = 40
- 40 ÷ 5 = 8
- 40 ÷ 8 = 5
- Difficulty
- hard
Teaching Notes
Practice fact family add sub within 20 with free printable worksheets. Uniquely generated — reinforce key math skills with every set.
Frequently Asked Questions
How do I use this Fact Family Add Sub Within 20 Hard Worksheets worksheet?
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.
Is there an answer key?
Yes — every worksheet includes a complete answer key. Print it separately or view it on screen.