medium Set 14 Form Exercise

Number bond: 38 = 21 + ?

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Answer: 17

SubType
number-bonds
Total
38
KnownPart
21
MissingPart
17
Difficulty
normal

64 = 10 + __

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Answer: 54

SubType
number-bonds
Total
64
KnownPart
10
MissingPart
54
Difficulty
normal

Number bond: 23 = ? + 14

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Answer: 9

SubType
number-bonds
Total
23
KnownPart
14
MissingPart
9
Difficulty
normal

Number bond: 18 = ? + 12

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Answer: 6

SubType
number-bonds
Total
18
KnownPart
12
MissingPart
6
Difficulty
normal

Complete the number bond: 52 = __ + 47

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Answer: 5

SubType
number-bonds
Total
52
KnownPart
47
MissingPart
5
Difficulty
normal

Number bond: 88 = ? + 51

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Answer: 37

SubType
number-bonds
Total
88
KnownPart
51
MissingPart
37
Difficulty
normal

19 = __ + 7

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Answer: 12

SubType
number-bonds
Total
19
KnownPart
7
MissingPart
12
Difficulty
normal

Number bond: 81 = ? + 77

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Answer: 4

SubType
number-bonds
Total
81
KnownPart
77
MissingPart
4
Difficulty
normal