easy Set 47 Form Exercise

What number + 1 = 20?

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Answer: 19

SubType
complement-of-100
Total
20
KnownAddend
1
Difficulty
normal

Find the complement to 10: 2 + __ = 10

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Answer: 8

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

What number + 2 = 10?

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Answer: 8

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

__ + 5 = 20

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Answer: 15

SubType
complement-of-100
Total
20
KnownAddend
5
Difficulty
normal

Find the complement to 20: 6 + __ = 20

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Answer: 14

SubType
complement-of-100
Total
20
KnownAddend
6
Difficulty
normal

__ + 10 = 20

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Answer: 10

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

__ + 19 = 20

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Answer: 1

SubType
complement-of-100
Total
20
KnownAddend
19
Difficulty
normal

__ + 6 = 20

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Answer: 14

SubType
complement-of-100
Total
20
KnownAddend
6
Difficulty
normal

__ + 4 = 10

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Answer: 6

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

What number + 18 = 100?

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Answer: 82

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

__ + 99 = 100

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Answer: 1

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

__ + 2 = 10

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Answer: 8

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

__ + 14 = 20

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Answer: 6

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

What number + 14 = 20?

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Answer: 6

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

Find the complement to 100: 51 + __ = 100

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Answer: 49

SubType
complement-of-100
Total
100
KnownAddend
51
Difficulty
normal

__ + 5 = 10

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Answer: 5

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

__ + 8 = 10

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Answer: 2

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

__ + 28 = 100

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Answer: 72

SubType
complement-of-100
Total
100
KnownAddend
28
Difficulty
normal