Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 86
15 = __ + 10
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Answer: 5
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 10
- MissingPart
- 5
- Difficulty
- normal
Number bond: 9 = ? + 7
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Answer: 2
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 7
- MissingPart
- 2
- 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
Complete the number bond: 2 = 1 + __
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
Complete the number bond: 3 = 1 + __
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Answer: 2
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 1
- MissingPart
- 2
- Difficulty
- normal
Number bond: 10 = 7 + ?
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Answer: 3
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 7
- MissingPart
- 3
- Difficulty
- normal
Number bond: 12 = ? + 11
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Answer: 1
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 11
- MissingPart
- 1
- Difficulty
- normal
20 = 11 + __
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Answer: 9
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 11
- MissingPart
- 9
- Difficulty
- normal
Teaching Notes
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