easy Set 52 Form Exercise

What number + 10 = 20?

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Answer: 10

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

__ + 8 = 20

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Answer: 12

SubType
complement-of-100
Total
20
KnownAddend
8
Difficulty
normal

__ + 1 = 10

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Answer: 9

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

Find the complement to 100: 39 + __ = 100

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Answer: 61

SubType
complement-of-100
Total
100
KnownAddend
39
Difficulty
normal

Find the complement to 10: 1 + __ = 10

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Answer: 9

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

Find the complement to 10: 4 + __ = 10

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Answer: 6

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

__ + 7 = 20

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Answer: 13

SubType
complement-of-100
Total
20
KnownAddend
7
Difficulty
normal

__ + 9 = 20

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Answer: 11

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

Find the complement to 10: 7 + __ = 10

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Answer: 3

SubType
complement-of-100
Total
10
KnownAddend
7
Difficulty
normal

What number + 68 = 100?

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Answer: 32

SubType
complement-of-100
Total
100
KnownAddend
68
Difficulty
normal

Find the complement to 100: 85 + __ = 100

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Answer: 15

SubType
complement-of-100
Total
100
KnownAddend
85
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

__ + 17 = 20

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Answer: 3

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

Find the complement to 20: 10 + __ = 20

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Answer: 10

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

__ + 4 = 10

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Answer: 6

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

What number + 53 = 100?

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Answer: 47

SubType
complement-of-100
Total
100
KnownAddend
53
Difficulty
normal

Find the complement to 100: 17 + __ = 100

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Answer: 83

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

__ + 15 = 20

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Answer: 5

SubType
complement-of-100
Total
20
KnownAddend
15
Difficulty
normal