Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 40
Complete the number bond: 16 = __ + 3
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Answer: 13
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 3
- MissingPart
- 13
- Difficulty
- normal
Complete the number bond: 13 = __ + 2
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Answer: 11
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 2
- MissingPart
- 11
- Difficulty
- normal
Number bond: 13 = 1 + ?
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Answer: 12
- SubType
- number-bonds
- Total
- 13
- KnownPart
- 1
- MissingPart
- 12
- Difficulty
- normal
20 = __ + 9
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Answer: 11
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 9
- MissingPart
- 11
- Difficulty
- normal
Number bond: 4 = 2 + ?
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Answer: 2
- SubType
- number-bonds
- Total
- 4
- KnownPart
- 2
- MissingPart
- 2
- Difficulty
- normal
Complete the number bond: 6 = 3 + __
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Answer: 3
- SubType
- number-bonds
- Total
- 6
- KnownPart
- 3
- MissingPart
- 3
- Difficulty
- normal
3 = __ + 2
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Answer: 1
- SubType
- number-bonds
- Total
- 3
- KnownPart
- 2
- MissingPart
- 1
- Difficulty
- normal
Complete the number bond: 15 = __ + 13
Show answer
Answer: 2
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 13
- MissingPart
- 2
- Difficulty
- normal
Teaching Notes
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Frequently Asked Questions
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