Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 51
16 = __ + 8
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Answer: 8
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 8
- MissingPart
- 8
- Difficulty
- normal
Complete the number bond: 12 = __ + 4
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Answer: 8
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 4
- MissingPart
- 8
- Difficulty
- normal
Complete the number bond: 14 = 2 + __
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Answer: 12
- SubType
- number-bonds
- Total
- 14
- KnownPart
- 2
- MissingPart
- 12
- Difficulty
- normal
10 = __ + 5
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Answer: 5
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 5
- MissingPart
- 5
- Difficulty
- normal
Complete the number bond: 19 = 4 + __
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Answer: 15
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 4
- MissingPart
- 15
- Difficulty
- normal
Number bond: 2 = ? + 1
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
3 = 1 + __
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Answer: 2
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 1
- MissingPart
- 2
- Difficulty
- normal
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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