Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 35
Number bond: 8 = 7 + ?
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Answer: 1
- SubType
- number-bonds
- Total
- 8
- KnownPart
- 7
- MissingPart
- 1
- Difficulty
- normal
Complete the number bond: 7 = __ + 5
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Answer: 2
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 5
- 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: 3 = ? + 1
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Answer: 2
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 1
- MissingPart
- 2
- Difficulty
- normal
Complete the number bond: 18 = __ + 12
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Answer: 6
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 12
- MissingPart
- 6
- Difficulty
- normal
Number bond: 13 = 4 + ?
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Answer: 9
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 4
- MissingPart
- 9
- Difficulty
- normal
15 = __ + 2
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Answer: 13
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 2
- MissingPart
- 13
- Difficulty
- normal
11 = __ + 3
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Answer: 8
- SubType
- number-bonds
- Total
- 11
- KnownPart
- 3
- MissingPart
- 8
- Difficulty
- normal
Teaching Notes
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Frequently Asked Questions
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