easy Set 31 Form Exercise

__ + 2 = 10

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Answer: 8

SubType
complement-of-100
Total
10
KnownAddend
2
Difficulty
normal

Find the complement to 100: 61 + __ = 100

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Answer: 39

SubType
complement-of-100
Total
100
KnownAddend
61
Difficulty
normal

Find the complement to 20: 10 + __ = 20

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Answer: 10

SubType
complement-of-100
Total
20
KnownAddend
10
Difficulty
normal

What number + 7 = 10?

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Answer: 3

SubType
complement-of-100
Total
10
KnownAddend
7
Difficulty
normal

__ + 11 = 20

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Answer: 9

SubType
complement-of-100
Total
20
KnownAddend
11
Difficulty
normal

Find the complement to 10: 8 + __ = 10

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Answer: 2

SubType
complement-of-100
Total
10
KnownAddend
8
Difficulty
normal

What number + 6 = 10?

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Answer: 4

SubType
complement-of-100
Total
10
KnownAddend
6
Difficulty
normal

What number + 5 = 10?

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Answer: 5

SubType
complement-of-100
Total
10
KnownAddend
5
Difficulty
normal

What number + 18 = 20?

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Answer: 2

SubType
complement-of-100
Total
20
KnownAddend
18
Difficulty
normal

__ + 7 = 10

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Answer: 3

SubType
complement-of-100
Total
10
KnownAddend
7
Difficulty
normal

__ + 1 = 10

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Answer: 9

SubType
complement-of-100
Total
10
KnownAddend
1
Difficulty
normal

Find the complement to 20: 14 + __ = 20

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Answer: 6

SubType
complement-of-100
Total
20
KnownAddend
14
Difficulty
normal

Find the complement to 10: 4 + __ = 10

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Answer: 6

SubType
complement-of-100
Total
10
KnownAddend
4
Difficulty
normal

Find the complement to 20: 11 + __ = 20

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Answer: 9

SubType
complement-of-100
Total
20
KnownAddend
11
Difficulty
normal

__ + 6 = 10

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Answer: 4

SubType
complement-of-100
Total
10
KnownAddend
6
Difficulty
normal

Find the complement to 10: 3 + __ = 10

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Answer: 7

SubType
complement-of-100
Total
10
KnownAddend
3
Difficulty
normal

__ + 43 = 100

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Answer: 57

SubType
complement-of-100
Total
100
KnownAddend
43
Difficulty
normal