easy Set 12 Form Exercise

What number + 9 = 10?

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Answer: 1

SubType
complement-of-9
Total
10
KnownAddend
9
Difficulty
normal

Find the complement to 20: 8 + __ = 20

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Answer: 12

SubType
complement-of-9
Total
20
KnownAddend
8
Difficulty
normal

__ + 17 = 20

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Answer: 3

SubType
complement-of-9
Total
20
KnownAddend
17
Difficulty
normal

__ + 50 = 100

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Answer: 50

SubType
complement-of-9
Total
100
KnownAddend
50
Difficulty
normal

What number + 3 = 10?

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Answer: 7

SubType
complement-of-9
Total
10
KnownAddend
3
Difficulty
normal

__ + 2 = 10

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Answer: 8

SubType
complement-of-9
Total
10
KnownAddend
2
Difficulty
normal

What number + 23 = 100?

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Answer: 77

SubType
complement-of-9
Total
100
KnownAddend
23
Difficulty
normal

Find the complement to 20: 16 + __ = 20

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Answer: 4

SubType
complement-of-9
Total
20
KnownAddend
16
Difficulty
normal

What number + 46 = 100?

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Answer: 54

SubType
complement-of-9
Total
100
KnownAddend
46
Difficulty
normal

Find the complement to 100: 99 + __ = 100

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Answer: 1

SubType
complement-of-9
Total
100
KnownAddend
99
Difficulty
normal

What number + 98 = 100?

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Answer: 2

SubType
complement-of-9
Total
100
KnownAddend
98
Difficulty
normal

Find the complement to 100: 27 + __ = 100

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Answer: 73

SubType
complement-of-9
Total
100
KnownAddend
27
Difficulty
normal

What number + 1 = 20?

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Answer: 19

SubType
complement-of-9
Total
20
KnownAddend
1
Difficulty
normal

Find the complement to 100: 16 + __ = 100

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Answer: 84

SubType
complement-of-9
Total
100
KnownAddend
16
Difficulty
normal

What number + 7 = 10?

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Answer: 3

SubType
complement-of-9
Total
10
KnownAddend
7
Difficulty
normal

__ + 13 = 20

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Answer: 7

SubType
complement-of-9
Total
20
KnownAddend
13
Difficulty
normal

__ + 8 = 20

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Answer: 12

SubType
complement-of-9
Total
20
KnownAddend
8
Difficulty
normal

Find the complement to 20: 10 + __ = 20

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Answer: 10

SubType
complement-of-9
Total
20
KnownAddend
10
Difficulty
normal

Find the complement to 20: 13 + __ = 20

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Answer: 7

SubType
complement-of-9
Total
20
KnownAddend
13
Difficulty
normal

Find the complement to 100: 34 + __ = 100

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Answer: 66

SubType
complement-of-9
Total
100
KnownAddend
34
Difficulty
normal