Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 40
Number bond: 10 = ? + 8
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Answer: 2
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 8
- MissingPart
- 2
- Difficulty
- normal
16 = 13 + __
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Answer: 3
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 13
- MissingPart
- 3
- Difficulty
- normal
Number bond: 4 = ? + 2
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Answer: 2
- SubType
- number-bonds
- Total
- 4
- KnownPart
- 2
- MissingPart
- 2
- Difficulty
- normal
Complete the number bond: 12 = __ + 11
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Answer: 1
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 11
- MissingPart
- 1
- Difficulty
- normal
Number bond: 13 = 5 + ?
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Answer: 8
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 5
- MissingPart
- 8
- Difficulty
- normal
Complete the number bond: 19 = __ + 2
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Answer: 17
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 2
- MissingPart
- 17
- Difficulty
- normal
Complete the number bond: 15 = __ + 14
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Answer: 1
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 14
- MissingPart
- 1
- Difficulty
- normal
Complete the number bond: 8 = 4 + __
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Answer: 4
- SubType
- number-bonds
- Total
- 8
- KnownPart
- 4
- MissingPart
- 4
- Difficulty
- normal
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?
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