Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 99
Number bond: 9 = 6 + ?
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Answer: 3
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 6
- MissingPart
- 3
- Difficulty
- normal
14 = 1 + __
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Answer: 13
- SubType
- number-bonds
- Total
- 14
- KnownPart
- 1
- MissingPart
- 13
- Difficulty
- normal
4 = 3 + __
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Answer: 1
- SubType
- number-bonds
- Total
- 4
- KnownPart
- 3
- MissingPart
- 1
- Difficulty
- normal
Number bond: 7 = 3 + ?
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Answer: 4
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 3
- MissingPart
- 4
- Difficulty
- normal
20 = 4 + __
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Answer: 16
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 4
- MissingPart
- 16
- Difficulty
- normal
Number bond: 2 = 1 + ?
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
11 = __ + 7
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Answer: 4
- SubType
- number-bonds
- Total
- 11
- KnownPart
- 7
- MissingPart
- 4
- Difficulty
- normal
20 = __ + 6
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Answer: 14
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 6
- MissingPart
- 14
- Difficulty
- normal
Teaching Notes
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