Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 18
Complete the number bond: 3 = __ + 1
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Answer: 2
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 1
- MissingPart
- 2
- Difficulty
- normal
Complete the number bond: 18 = 11 + __
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Answer: 7
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 11
- MissingPart
- 7
- Difficulty
- normal
8 = 6 + __
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Answer: 2
- SubType
- number-bonds
- Total
- 8
- KnownPart
- 6
- MissingPart
- 2
- Difficulty
- normal
13 = __ + 9
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Answer: 4
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 9
- MissingPart
- 4
- Difficulty
- normal
Number bond: 20 = 17 + ?
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Answer: 3
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 17
- MissingPart
- 3
- Difficulty
- normal
16 = 4 + __
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Answer: 12
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 4
- MissingPart
- 12
- Difficulty
- normal
Complete the number bond: 7 = 3 + __
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Answer: 4
- SubType
- number-bonds
- Total
- 7
- KnownPart
- 3
- MissingPart
- 4
- Difficulty
- normal
2 = 1 + __
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
Teaching Notes
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