Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 22
Number bond: 20 = 13 + ?
Show answer
Answer: 7
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 13
- MissingPart
- 7
- Difficulty
- normal
19 = 13 + __
Show answer
Answer: 6
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 13
- MissingPart
- 6
- Difficulty
- normal
8 = __ + 4
Show answer
Answer: 4
- SubType
- number-bonds
- Total
- 8
- KnownPart
- 4
- MissingPart
- 4
- Difficulty
- normal
9 = __ + 4
Show answer
Answer: 5
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 4
- MissingPart
- 5
- Difficulty
- normal
Number bond: 7 = ? + 3
Show answer
Answer: 4
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 3
- MissingPart
- 4
- Difficulty
- normal
Number bond: 5 = 2 + ?
Show answer
Answer: 3
- SubType
- number-bonds
- Total
- 5
- KnownPart
- 2
- MissingPart
- 3
- Difficulty
- normal
Number bond: 3 = ? + 2
Show answer
Answer: 1
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 2
- MissingPart
- 1
- Difficulty
- normal
Number bond: 9 = 8 + ?
Show answer
Answer: 1
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 8
- MissingPart
- 1
- Difficulty
- normal
Teaching Notes
Download this free number bonds addition within 20 fill one math worksheet. Uniquely generated with an answer key — great for homework, practice, or assessment.
Frequently Asked Questions
How do I use this Number Bonds Addition Within 20 Fill One Math Worksheet 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.