Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 52
Number bond: 2 = 1 + ?
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
18 = 12 + __
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Answer: 6
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 12
- MissingPart
- 6
- Difficulty
- normal
Number bond: 10 = ? + 4
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Answer: 6
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 4
- MissingPart
- 6
- Difficulty
- normal
14 = __ + 11
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Answer: 3
- SubType
- number-bonds
- Total
- 14
- KnownPart
- 11
- MissingPart
- 3
- Difficulty
- normal
10 = __ + 8
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Answer: 2
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 8
- MissingPart
- 2
- Difficulty
- normal
6 = __ + 5
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Answer: 1
- SubType
- number-bonds
- Total
- 6
- KnownPart
- 5
- MissingPart
- 1
- Difficulty
- normal
Number bond: 17 = 7 + ?
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Answer: 10
- SubType
- number-bonds
- Total
- 17
- KnownPart
- 7
- MissingPart
- 10
- Difficulty
- normal
12 = 5 + __
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Answer: 7
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 5
- MissingPart
- 7
- Difficulty
- normal
Teaching Notes
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