Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 36
Write the fact family for 9, 4, 36:
Show answer
Answer: 9 × 4 = 36; 4 × 9 = 36; 36 ÷ 9 = 4; 36 ÷ 4 = 9
- SubType
- fact-family
- Facts
- 9 × 4 = 36
- 4 × 9 = 36
- 36 ÷ 9 = 4
- 36 ÷ 4 = 9
- Difficulty
- hard
Write the fact family for 11, 3, 33:
Show answer
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 4, 12, 16:
Show answer
Answer: 4 + 12 = 16; 12 + 4 = 16; 16 - 4 = 12; 16 - 12 = 4
- SubType
- fact-family
- Facts
- 4 + 12 = 16
- 12 + 4 = 16
- 16 - 4 = 12
- 16 - 12 = 4
- Difficulty
- hard
Write the fact family for 12, 6, 72:
Show answer
Answer: 12 × 6 = 72; 6 × 12 = 72; 72 ÷ 12 = 6; 72 ÷ 6 = 12
- SubType
- fact-family
- Facts
- 12 × 6 = 72
- 6 × 12 = 72
- 72 ÷ 12 = 6
- 72 ÷ 6 = 12
- Difficulty
- hard
Write the fact family for 19, 1, 20:
Show answer
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
Write the fact family for 10, 7, 70:
Show answer
Answer: 10 × 7 = 70; 7 × 10 = 70; 70 ÷ 10 = 7; 70 ÷ 7 = 10
- SubType
- fact-family
- Facts
- 10 × 7 = 70
- 7 × 10 = 70
- 70 ÷ 10 = 7
- 70 ÷ 7 = 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.
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.