Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 81
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: 18 = 7 + __
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Answer: 11
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 7
- MissingPart
- 11
- Difficulty
- normal
Complete the number bond: 9 = 2 + __
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Answer: 7
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 2
- MissingPart
- 7
- Difficulty
- normal
Number bond: 12 = 6 + ?
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Answer: 6
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 6
- MissingPart
- 6
- Difficulty
- normal
19 = 10 + __
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Answer: 9
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 10
- MissingPart
- 9
- Difficulty
- normal
Complete the number bond: 3 = __ + 2
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Answer: 1
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 2
- MissingPart
- 1
- Difficulty
- normal
Number bond: 9 = 1 + ?
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Answer: 8
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 1
- MissingPart
- 8
- Difficulty
- normal
Teaching Notes
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