Workbook Detail
Number Bonds Addition Within 20 Fill One — Set 71
16 = __ + 9
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Answer: 7
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 9
- MissingPart
- 7
- Difficulty
- normal
13 = __ + 3
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Answer: 10
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 3
- MissingPart
- 10
- Difficulty
- normal
Complete the number bond: 17 = 2 + __
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Answer: 15
- SubType
- number-bonds
- Total
- 17
- KnownPart
- 2
- MissingPart
- 15
- Difficulty
- normal
Complete the number bond: 5 = __ + 3
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Answer: 2
- SubType
- number-bonds
- Total
- 5
- KnownPart
- 3
- MissingPart
- 2
- Difficulty
- normal
Complete the number bond: 18 = __ + 2
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Answer: 16
- SubType
- number-bonds
- Total
- 18
- KnownPart
- 2
- MissingPart
- 16
- Difficulty
- normal
20 = __ + 2
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Answer: 18
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 2
- MissingPart
- 18
- Difficulty
- normal
Number bond: 15 = 4 + ?
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Answer: 11
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 4
- MissingPart
- 11
- Difficulty
- normal
12 = 3 + __
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Answer: 9
- SubType
- number-bonds
- Total
- 12
- KnownPart
- 3
- MissingPart
- 9
- Difficulty
- normal
Teaching Notes
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