Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 78
Number bond: 17 = 15 + ?
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Answer: 2
- SubType
- number-bonds
- Total
- 17
- KnownPart
- 15
- MissingPart
- 2
- Difficulty
- normal
14 = 9 + __
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Answer: 5
- SubType
- number-bonds
- Total
- 14
- KnownPart
- 9
- MissingPart
- 5
- Difficulty
- normal
Number bond: 18 = ? + 12
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Answer: 6
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 12
- MissingPart
- 6
- Difficulty
- normal
Number bond: 12 = ? + 7
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Answer: 5
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 7
- MissingPart
- 5
- Difficulty
- normal
13 = __ + 1
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Answer: 12
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 1
- MissingPart
- 12
- 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: 17 = __ + 13
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Answer: 4
- SubType
- number-bonds
- Total
- 17
- KnownPart
- 13
- MissingPart
- 4
- Difficulty
- normal
3 = __ + 2
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Answer: 1
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 2
- MissingPart
- 1
- Difficulty
- normal
Teaching Notes
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