medium Set 21 Form Exercise

9 = 5 + __

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Answer: 4

SubType
number-bonds
Total
9
KnownPart
5
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

15 = __ + 7

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Answer: 8

SubType
number-bonds
Total
15
KnownPart
7
MissingPart
8
Difficulty
normal

Complete the number bond: 19 = 5 + __

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Answer: 14

SubType
number-bonds
Total
19
KnownPart
5
MissingPart
14
Difficulty
normal

8 = __ + 4

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Answer: 4

SubType
number-bonds
Total
8
KnownPart
4
MissingPart
4
Difficulty
normal

Complete the number bond: 14 = __ + 12

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Answer: 2

SubType
number-bonds
Total
14
KnownPart
12
MissingPart
2
Difficulty
normal

12 = __ + 11

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Answer: 1

SubType
number-bonds
Total
12
KnownPart
11
MissingPart
1
Difficulty
normal

20 = 3 + __

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Answer: 17

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