medium Set 60 Form Exercise

20 = __ + 1

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Answer: 19

SubType
number-bonds
Total
20
KnownPart
1
MissingPart
19
Difficulty
normal

6 = __ + 2

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Answer: 4

SubType
number-bonds
Total
6
KnownPart
2
MissingPart
4
Difficulty
normal

2 = __ + 1

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Answer: 1

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

13 = 4 + __

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Answer: 9

SubType
number-bonds
Total
13
KnownPart
4
MissingPart
9
Difficulty
normal

16 = __ + 14

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Answer: 2

SubType
number-bonds
Total
16
KnownPart
14
MissingPart
2
Difficulty
normal

15 = 5 + __

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Answer: 10

SubType
number-bonds
Total
15
KnownPart
5
MissingPart
10
Difficulty
normal

Number bond: 11 = 1 + ?

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Answer: 10

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

4 = __ + 1

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Answer: 3

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