Workbook Detail
Number Sense Number Bonds Bonds To 20 — Set 39
13 = __ + 8
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Answer: 5
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 8
- MissingPart
- 5
- Difficulty
- normal
Complete the number bond: 6 = __ + 1
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Answer: 5
- SubType
- number-bonds
- Total
- 6
- KnownPart
- 1
- MissingPart
- 5
- Difficulty
- normal
4 = __ + 3
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Answer: 1
- SubType
- number-bonds
- Total
- 4
- KnownPart
- 3
- MissingPart
- 1
- Difficulty
- normal
8 = __ + 6
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Answer: 2
- SubType
- number-bonds
- Total
- 8
- KnownPart
- 6
- MissingPart
- 2
- Difficulty
- normal
Number bond: 20 = 17 + ?
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Answer: 3
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 17
- MissingPart
- 3
- Difficulty
- normal
Complete the number bond: 19 = 11 + __
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Answer: 8
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 11
- MissingPart
- 8
- 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
19 = 12 + __
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Answer: 7
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 12
- MissingPart
- 7
- Difficulty
- normal