Workbook Detail
Number Sense Number Bonds Bonds To 20 — Set 80
Number bond: 20 = ? + 13
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Answer: 7
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 13
- MissingPart
- 7
- Difficulty
- normal
20 = __ + 9
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Answer: 11
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 9
- MissingPart
- 11
- Difficulty
- normal
Complete the number bond: 2 = 1 + __
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Answer: 1
- SubType
- number-bonds
- Total
- 2
- KnownPart
- 1
- MissingPart
- 1
- Difficulty
- normal
Complete the number bond: 15 = __ + 13
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Answer: 2
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 13
- MissingPart
- 2
- Difficulty
- normal
Number bond: 10 = 2 + ?
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Answer: 8
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 2
- MissingPart
- 8
- Difficulty
- normal
Complete the number bond: 10 = __ + 7
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Answer: 3
- SubType
- number-bonds
- Total
- 10
- KnownPart
- 7
- MissingPart
- 3
- Difficulty
- normal
Number bond: 20 = ? + 11
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Answer: 9
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 11
- MissingPart
- 9
- Difficulty
- normal
Number bond: 11 = ? + 10
Show answer
Answer: 1
- SubType
- number-bonds
- Total
- 11
- KnownPart
- 10
- MissingPart
- 1
- Difficulty
- normal