hard Set 90 Form Exercise

3 = 2 + __

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Answer: 1

SubType
number-bonds
Total
3
KnownPart
2
MissingPart
1
Difficulty
hard

Number bond: 3 = ? + 2

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Answer: 1

SubType
number-bonds
Total
3
KnownPart
2
MissingPart
1
Difficulty
hard

7 = 4 + __

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Answer: 3

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

Number bond: 6 = ? + 1

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Answer: 5

SubType
number-bonds
Total
6
KnownPart
1
MissingPart
5
Difficulty
hard

Number bond: 2 = ? + 1

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Answer: 1

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

9 = __ + 7

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Answer: 2

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

7 = __ + 1

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Answer: 6

SubType
number-bonds
Total
7
KnownPart
1
MissingPart
6
Difficulty
hard

Number bond: 10 = 1 + ?

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Answer: 9

SubType
number-bonds
Total
10
KnownPart
1
MissingPart
9
Difficulty
hard