easy Set 80 Form Exercise

What number + 11 = 20?

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Answer: 9

SubType
complement-of-100
Total
20
KnownAddend
11
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 + 36 = 100?

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Answer: 64

SubType
complement-of-100
Total
100
KnownAddend
36
Difficulty
normal

__ + 72 = 100

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Answer: 28

SubType
complement-of-100
Total
100
KnownAddend
72
Difficulty
normal

__ + 16 = 20

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Answer: 4

SubType
complement-of-100
Total
20
KnownAddend
16
Difficulty
normal

Find the complement to 100: 6 + __ = 100

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Answer: 94

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

Find the complement to 100: 92 + __ = 100

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Answer: 8

SubType
complement-of-100
Total
100
KnownAddend
92
Difficulty
normal

Find the complement to 20: 19 + __ = 20

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Answer: 1

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

What number + 35 = 100?

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Answer: 65

SubType
complement-of-100
Total
100
KnownAddend
35
Difficulty
normal

__ + 41 = 100

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Answer: 59

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

What number + 10 = 20?

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Answer: 10

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

__ + 1 = 10

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Answer: 9

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

What number + 71 = 100?

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Answer: 29

SubType
complement-of-100
Total
100
KnownAddend
71
Difficulty
normal

__ + 14 = 20

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Answer: 6

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

__ + 2 = 100

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Answer: 98

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

__ + 11 = 20

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Answer: 9

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

__ + 5 = 10

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Answer: 5

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