medium Set 81 Form Exercise

Number bond: 2 = ? + 1

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Answer: 1

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

Complete the number bond: 19 = __ + 13

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Answer: 6

SubType
number-bonds
Total
19
KnownPart
13
MissingPart
6
Difficulty
normal

Number bond: 13 = ? + 2

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Answer: 11

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

Complete the number bond: 8 = __ + 4

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Answer: 4

SubType
number-bonds
Total
8
KnownPart
4
MissingPart
4
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

4 = 1 + __

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Answer: 3

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

Number bond: 5 = ? + 3

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Answer: 2

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

11 = __ + 10

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Answer: 1

SubType
number-bonds
Total
11
KnownPart
10
MissingPart
1
Difficulty
normal