Workbook Detail
Number Bonds Addition Within 20 Fill Both — Set 21
Number bond: 14 = 11 + ?
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Answer: 3
- SubType
- number-bonds
- Total
- 14
- KnownPart
- 11
- MissingPart
- 3
- Difficulty
- normal
Complete the number bond: 11 = __ + 2
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Answer: 9
- SubType
- number-bonds
- Total
- 11
- KnownPart
- 2
- MissingPart
- 9
- 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
15 = __ + 11
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Answer: 4
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 11
- MissingPart
- 4
- Difficulty
- normal
19 = 8 + __
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Answer: 11
- SubType
- number-bonds
- Total
- 19
- KnownPart
- 8
- MissingPart
- 11
- Difficulty
- normal
15 = 11 + __
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Answer: 4
- SubType
- number-bonds
- Total
- 15
- KnownPart
- 11
- MissingPart
- 4
- Difficulty
- normal
16 = __ + 10
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Answer: 6
- SubType
- number-bonds
- Total
- 16
- KnownPart
- 10
- MissingPart
- 6
- Difficulty
- normal
Complete the number bond: 20 = 19 + __
Show answer
Answer: 1
- SubType
- number-bonds
- Total
- 20
- KnownPart
- 19
- MissingPart
- 1
- Difficulty
- normal
Teaching Notes
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