medium Set 91 Form Exercise

20 = 15 + __

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Answer: 5

SubType
number-bonds
Total
20
KnownPart
15
MissingPart
5
Difficulty
normal

Complete the number bond: 15 = __ + 12

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Answer: 3

SubType
number-bonds
Total
15
KnownPart
12
MissingPart
3
Difficulty
normal

13 = 12 + __

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Answer: 1

SubType
number-bonds
Total
13
KnownPart
12
MissingPart
1
Difficulty
normal

15 = 12 + __

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Answer: 3

SubType
number-bonds
Total
15
KnownPart
12
MissingPart
3
Difficulty
normal

Number bond: 16 = 6 + ?

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Answer: 10

SubType
number-bonds
Total
16
KnownPart
6
MissingPart
10
Difficulty
normal

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: 15 = 5 + __

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Answer: 10

SubType
number-bonds
Total
15
KnownPart
5
MissingPart
10
Difficulty
normal

15 = __ + 11

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Answer: 4

SubType
number-bonds
Total
15
KnownPart
11
MissingPart
4
Difficulty
normal