expert Set 89 Form Exercise

Number bond: 2 = 1 + ?

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Answer: 1

SubType
number-bonds
Total
2
KnownPart
1
MissingPart
1
Difficulty
expert

Complete the number bond: 8 = 7 + __

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Answer: 1

SubType
number-bonds
Total
8
KnownPart
7
MissingPart
1
Difficulty
expert

Number bond: 7 = 4 + ?

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Answer: 3

SubType
number-bonds
Total
7
KnownPart
4
MissingPart
3
Difficulty
expert

9 = 8 + __

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Answer: 1

SubType
number-bonds
Total
9
KnownPart
8
MissingPart
1
Difficulty
expert

Number bond: 4 = 3 + ?

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Answer: 1

SubType
number-bonds
Total
4
KnownPart
3
MissingPart
1
Difficulty
expert

Number bond: 4 = 1 + ?

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Answer: 3

SubType
number-bonds
Total
4
KnownPart
1
MissingPart
3
Difficulty
expert

8 = 2 + __

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Answer: 6

SubType
number-bonds
Total
8
KnownPart
2
MissingPart
6
Difficulty
expert

9 = 7 + __

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Answer: 2

SubType
number-bonds
Total
9
KnownPart
7
MissingPart
2
Difficulty
expert