medium Set 64 Form Exercise

Number bond: 13 = 1 + ?

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Answer: 12

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

Complete the number bond: 20 = __ + 7

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Answer: 13

SubType
number-bonds
Total
20
KnownPart
7
MissingPart
13
Difficulty
normal

Number bond: 13 = ? + 11

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Answer: 2

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

18 = __ + 7

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Answer: 11

SubType
number-bonds
Total
18
KnownPart
7
MissingPart
11
Difficulty
normal

Number bond: 3 = 2 + ?

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Answer: 1

SubType
number-bonds
Total
3
KnownPart
2
MissingPart
1
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

Number bond: 16 = 14 + ?

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Answer: 2

SubType
number-bonds
Total
16
KnownPart
14
MissingPart
2
Difficulty
normal

11 = __ + 5

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Answer: 6

SubType
number-bonds
Total
11
KnownPart
5
MissingPart
6
Difficulty
normal