medium Set 53 Form Exercise

Complete the number bond: 4 = 3 + __

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Answer: 1

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

Complete the number bond: 47 = __ + 20

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Answer: 27

SubType
number-bonds
Total
47
KnownPart
20
MissingPart
27
Difficulty
normal

Number bond: 30 = 28 + ?

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Answer: 2

SubType
number-bonds
Total
30
KnownPart
28
MissingPart
2
Difficulty
normal

39 = __ + 16

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Answer: 23

SubType
number-bonds
Total
39
KnownPart
16
MissingPart
23
Difficulty
normal

Number bond: 33 = 6 + ?

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Answer: 27

SubType
number-bonds
Total
33
KnownPart
6
MissingPart
27
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: 2 = ? + 1

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Answer: 1

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

Number bond: 31 = ? + 18

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Answer: 13

SubType
number-bonds
Total
31
KnownPart
18
MissingPart
13
Difficulty
normal