medium Set 80 Form Exercise

Complete the number bond: 33 = __ + 21

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Answer: 12

SubType
number-bonds
Total
33
KnownPart
21
MissingPart
12
Difficulty
normal

Number bond: 14 = ? + 3

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Answer: 11

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

2 = 1 + __

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Answer: 1

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

Number bond: 48 = ? + 14

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Answer: 34

SubType
number-bonds
Total
48
KnownPart
14
MissingPart
34
Difficulty
normal

Complete the number bond: 50 = 23 + __

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Answer: 27

SubType
number-bonds
Total
50
KnownPart
23
MissingPart
27
Difficulty
normal

Number bond: 13 = ? + 12

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Answer: 1

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

42 = __ + 33

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Answer: 9

SubType
number-bonds
Total
42
KnownPart
33
MissingPart
9
Difficulty
normal

Complete the number bond: 12 = 11 + __

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Answer: 1

SubType
number-bonds
Total
12
KnownPart
11
MissingPart
1
Difficulty
normal