Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 8
Exercise 1
Show answer
Answer: 13
- Operation
- addition
- Target
- 18
- Mode
- fill_one
- Parts
- 5
- 13
- Given
- Position: leftValue: 5
- Blank
- Position: right
Exercise 2
Show answer
Answer: 1
- Operation
- addition
- Target
- 3
- Mode
- fill_one
- Parts
- 1
- 2
- Given
- Position: rightValue: 2
- Blank
- Position: left
Exercise 3
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Answer: 2
- Operation
- addition
- Target
- 15
- Mode
- fill_one
- Parts
- 2
- 13
- Given
- Position: rightValue: 13
- Blank
- Position: left
Exercise 4
Show answer
Answer: 1
- Operation
- addition
- Target
- 17
- Mode
- fill_one
- Parts
- 1
- 16
- Given
- Position: rightValue: 16
- Blank
- Position: left
Exercise 5
Show answer
Answer: 6
- Operation
- addition
- Target
- 18
- Mode
- fill_one
- Parts
- 6
- 12
- Given
- Position: rightValue: 12
- Blank
- Position: left
Exercise 6
Show answer
Answer: 12
- Operation
- addition
- Target
- 19
- Mode
- fill_one
- Parts
- 7
- 12
- Given
- Position: leftValue: 7
- Blank
- Position: right
Exercise 7
Show answer
Answer: 8
- Operation
- addition
- Target
- 16
- Mode
- fill_one
- Parts
- 8
- 8
- Given
- Position: leftValue: 8
- Blank
- Position: right
Exercise 8
Show answer
Answer: 12
- Operation
- addition
- Target
- 13
- Mode
- fill_one
- Parts
- 1
- 12
- Given
- Position: leftValue: 1
- Blank
- Position: right
Teaching Notes
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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.