easy Set 51 Form Exercise

__ + 19 = 20

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Answer: 1

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

What number + 17 = 20?

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Answer: 3

SubType
complement-of-100
Total
20
KnownAddend
17
Difficulty
normal

Find the complement to 20: 5 + __ = 20

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Answer: 15

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

What number + 2 = 10?

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Answer: 8

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

__ + 9 = 10

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Answer: 1

SubType
complement-of-100
Total
10
KnownAddend
9
Difficulty
normal

What number + 97 = 100?

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Answer: 3

SubType
complement-of-100
Total
100
KnownAddend
97
Difficulty
normal

What number + 41 = 100?

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Answer: 59

SubType
complement-of-100
Total
100
KnownAddend
41
Difficulty
normal

__ + 31 = 100

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Answer: 69

SubType
complement-of-100
Total
100
KnownAddend
31
Difficulty
normal

What number + 94 = 100?

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Answer: 6

SubType
complement-of-100
Total
100
KnownAddend
94
Difficulty
normal

Find the complement to 100: 33 + __ = 100

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Answer: 67

SubType
complement-of-100
Total
100
KnownAddend
33
Difficulty
normal

What number + 1 = 10?

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Answer: 9

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

__ + 3 = 10

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Answer: 7

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

What number + 64 = 100?

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Answer: 36

SubType
complement-of-100
Total
100
KnownAddend
64
Difficulty
normal

What number + 23 = 100?

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Answer: 77

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

Find the complement to 20: 12 + __ = 20

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Answer: 8

SubType
complement-of-100
Total
20
KnownAddend
12
Difficulty
normal

Find the complement to 10: 9 + __ = 10

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Answer: 1

SubType
complement-of-100
Total
10
KnownAddend
9
Difficulty
normal

What number + 9 = 20?

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Answer: 11

SubType
complement-of-100
Total
20
KnownAddend
9
Difficulty
normal

__ + 1 = 20

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Answer: 19

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