medium Set 99 Form Exercise

Number bond: 20 = 13 + ?

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Answer: 7

SubType
number-bonds
Total
20
KnownPart
13
MissingPart
7
Difficulty
normal

Number bond: 3 = ? + 2

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Answer: 1

SubType
number-bonds
Total
3
KnownPart
2
MissingPart
1
Difficulty
normal

Number bond: 20 = ? + 12

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Answer: 8

SubType
number-bonds
Total
20
KnownPart
12
MissingPart
8
Difficulty
normal

Complete the number bond: 5 = __ + 2

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Answer: 3

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

Complete the number bond: 16 = __ + 1

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Answer: 15

SubType
number-bonds
Total
16
KnownPart
1
MissingPart
15
Difficulty
normal

Complete the number bond: 13 = __ + 1

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Answer: 12

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

4 = __ + 1

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Answer: 3

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

Number bond: 17 = ? + 6

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Answer: 11

SubType
number-bonds
Total
17
KnownPart
6
MissingPart
11
Difficulty
normal