medium Set 56 Form Exercise

20 = __ + 16

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Answer: 4

SubType
number-bonds
Total
20
KnownPart
16
MissingPart
4
Difficulty
normal

20 = 3 + __

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Answer: 17

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

Number bond: 4 = 1 + ?

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Answer: 3

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

Number bond: 15 = ? + 6

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Answer: 9

SubType
number-bonds
Total
15
KnownPart
6
MissingPart
9
Difficulty
normal

2 = 1 + __

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Answer: 1

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

18 = 1 + __

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Answer: 17

SubType
number-bonds
Total
18
KnownPart
1
MissingPart
17
Difficulty
normal

19 = 7 + __

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Answer: 12

SubType
number-bonds
Total
19
KnownPart
7
MissingPart
12
Difficulty
normal

Complete the number bond: 17 = 1 + __

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Answer: 16

SubType
number-bonds
Total
17
KnownPart
1
MissingPart
16
Difficulty
normal