Workbook Detail
Fact Family Add Sub Within 20 Hard — Set 67
Write the fact family for 10, 8, 18:
Show answer
Answer: 10 + 8 = 18; 8 + 10 = 18; 18 - 10 = 8; 18 - 8 = 10
- SubType
- fact-family
- Facts
- 10 + 8 = 18
- 8 + 10 = 18
- 18 - 10 = 8
- 18 - 8 = 10
- Difficulty
- hard
Write the fact family for 5, 10, 50:
Show answer
Answer: 5 × 10 = 50; 10 × 5 = 50; 50 ÷ 5 = 10; 50 ÷ 10 = 5
- SubType
- fact-family
- Facts
- 5 × 10 = 50
- 10 × 5 = 50
- 50 ÷ 5 = 10
- 50 ÷ 10 = 5
- 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, 4, 14:
Show answer
Answer: 10 + 4 = 14; 4 + 10 = 14; 14 - 10 = 4; 14 - 4 = 10
- SubType
- fact-family
- Facts
- 10 + 4 = 14
- 4 + 10 = 14
- 14 - 10 = 4
- 14 - 4 = 10
- 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
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.