medium Set 87 Form Exercise

Number bond: 8 = 7 + ?

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Answer: 1

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

Number bond: 2 = 1 + ?

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Answer: 1

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

18 = __ + 3

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Answer: 15

SubType
number-bonds
Total
18
KnownPart
3
MissingPart
15
Difficulty
normal

3 = 2 + __

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Answer: 1

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

14 = __ + 11

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Answer: 3

SubType
number-bonds
Total
14
KnownPart
11
MissingPart
3
Difficulty
normal

Number bond: 13 = 4 + ?

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Answer: 9

SubType
number-bonds
Total
13
KnownPart
4
MissingPart
9
Difficulty
normal

18 = 5 + __

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Answer: 13

SubType
number-bonds
Total
18
KnownPart
5
MissingPart
13
Difficulty
normal

Complete the number bond: 13 = __ + 11

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Answer: 2

SubType
number-bonds
Total
13
KnownPart
11
MissingPart
2
Difficulty
normal