Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 20
19 = 12 + __
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Answer: 7
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 12
- MissingPart
- 7
- Difficulty
- normal
Number bond: 17 = 3 + ?
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Answer: 14
- SubType
- number-bonds
- Total
- 17
- KnownPart
- 3
- MissingPart
- 14
- Difficulty
- normal
6 = __ + 1
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Answer: 5
- SubType
- number-bonds
- Total
- 6
- KnownPart
- 1
- MissingPart
- 5
- Difficulty
- normal
Number bond: 2 = ? + 1
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
7 = 1 + __
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Answer: 6
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 1
- MissingPart
- 6
- Difficulty
- normal
Number bond: 9 = ? + 5
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Answer: 4
- SubType
- number-bonds
- Total
- 9
- KnownPart
- 5
- MissingPart
- 4
- Difficulty
- normal
19 = __ + 4
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Answer: 15
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 4
- MissingPart
- 15
- Difficulty
- normal
12 = __ + 11
Show answer
Answer: 1
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 11
- MissingPart
- 1
- Difficulty
- normal
Teaching Notes
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