easy Set 51 Form Exercise

What number + 4 = 20?

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Answer: 16

SubType
complement-of-9
Total
20
KnownAddend
4
Difficulty
normal

What number + 43 = 100?

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Answer: 57

SubType
complement-of-9
Total
100
KnownAddend
43
Difficulty
normal

Find the complement to 100: 14 + __ = 100

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Answer: 86

SubType
complement-of-9
Total
100
KnownAddend
14
Difficulty
normal

Find the complement to 10: 6 + __ = 10

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Answer: 4

SubType
complement-of-9
Total
10
KnownAddend
6
Difficulty
normal

What number + 12 = 20?

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Answer: 8

SubType
complement-of-9
Total
20
KnownAddend
12
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

__ + 7 = 10

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Answer: 3

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

What number + 2 = 10?

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Answer: 8

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

__ + 12 = 20

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Answer: 8

SubType
complement-of-9
Total
20
KnownAddend
12
Difficulty
normal

Find the complement to 10: 3 + __ = 10

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Answer: 7

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

What number + 16 = 20?

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Answer: 4

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

__ + 16 = 20

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Answer: 4

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

__ + 10 = 20

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Answer: 10

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

__ + 95 = 100

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Answer: 5

SubType
complement-of-9
Total
100
KnownAddend
95
Difficulty
normal

What number + 95 = 100?

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Answer: 5

SubType
complement-of-9
Total
100
KnownAddend
95
Difficulty
normal

What number + 7 = 20?

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Answer: 13

SubType
complement-of-9
Total
20
KnownAddend
7
Difficulty
normal

__ + 18 = 20

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Answer: 2

SubType
complement-of-9
Total
20
KnownAddend
18
Difficulty
normal

__ + 5 = 10

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Answer: 5

SubType
complement-of-9
Total
10
KnownAddend
5
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