Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 81
9 = 6 + __
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Answer: 3
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 6
- MissingPart
- 3
- Difficulty
- normal
13 = 4 + __
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Answer: 9
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 4
- MissingPart
- 9
- Difficulty
- normal
Number bond: 20 = 15 + ?
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Answer: 5
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 15
- MissingPart
- 5
- Difficulty
- normal
Number bond: 15 = 3 + ?
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Answer: 12
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 3
- MissingPart
- 12
- Difficulty
- normal
16 = __ + 9
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Answer: 7
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 9
- MissingPart
- 7
- Difficulty
- normal
Number bond: 15 = 1 + ?
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Answer: 14
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 1
- MissingPart
- 14
- Difficulty
- normal
7 = 4 + __
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Answer: 3
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 4
- MissingPart
- 3
- Difficulty
- normal
Number bond: 18 = ? + 7
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Answer: 11
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 7
- MissingPart
- 11
- Difficulty
- normal
Teaching Notes
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