medium Set 54 Form Exercise

Number bond: 15 = ? + 14

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Answer: 1

SubType
number-bonds
Total
15
KnownPart
14
MissingPart
1
Difficulty
normal

Complete the number bond: 17 = 3 + __

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Answer: 14

SubType
number-bonds
Total
17
KnownPart
3
MissingPart
14
Difficulty
normal

20 = 3 + __

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Answer: 17

SubType
number-bonds
Total
20
KnownPart
3
MissingPart
17
Difficulty
normal

Complete the number bond: 5 = 3 + __

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Answer: 2

SubType
number-bonds
Total
5
KnownPart
3
MissingPart
2
Difficulty
normal

Complete the number bond: 19 = __ + 10

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Answer: 9

SubType
number-bonds
Total
19
KnownPart
10
MissingPart
9
Difficulty
normal

4 = 3 + __

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Answer: 1

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

Number bond: 8 = 3 + ?

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Answer: 5

SubType
number-bonds
Total
8
KnownPart
3
MissingPart
5
Difficulty
normal

9 = 7 + __

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Answer: 2

SubType
number-bonds
Total
9
KnownPart
7
MissingPart
2
Difficulty
normal