easy Set 39 Form Exercise

What number + 17 = 20?

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Answer: 3

SubType
complement-of-9
Total
20
KnownAddend
17
Difficulty
normal

What number + 10 = 20?

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Answer: 10

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

Find the complement to 10: 2 + __ = 10

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Answer: 8

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

__ + 92 = 100

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Answer: 8

SubType
complement-of-9
Total
100
KnownAddend
92
Difficulty
normal

Find the complement to 100: 38 + __ = 100

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Answer: 62

SubType
complement-of-9
Total
100
KnownAddend
38
Difficulty
normal

__ + 12 = 20

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Answer: 8

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

Find the complement to 100: 39 + __ = 100

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Answer: 61

SubType
complement-of-9
Total
100
KnownAddend
39
Difficulty
normal

What number + 11 = 20?

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Answer: 9

SubType
complement-of-9
Total
20
KnownAddend
11
Difficulty
normal

__ + 8 = 10

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Answer: 2

SubType
complement-of-9
Total
10
KnownAddend
8
Difficulty
normal

What number + 65 = 100?

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Answer: 35

SubType
complement-of-9
Total
100
KnownAddend
65
Difficulty
normal

__ + 4 = 10

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Answer: 6

SubType
complement-of-9
Total
10
KnownAddend
4
Difficulty
normal

Find the complement to 10: 9 + __ = 10

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Answer: 1

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

__ + 7 = 10

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Answer: 3

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

What number + 1 = 20?

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Answer: 19

SubType
complement-of-9
Total
20
KnownAddend
1
Difficulty
normal

Find the complement to 100: 99 + __ = 100

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Answer: 1

SubType
complement-of-9
Total
100
KnownAddend
99
Difficulty
normal

Find the complement to 10: 8 + __ = 10

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Answer: 2

SubType
complement-of-9
Total
10
KnownAddend
8
Difficulty
normal

What number + 52 = 100?

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Answer: 48

SubType
complement-of-9
Total
100
KnownAddend
52
Difficulty
normal

__ + 5 = 20

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Answer: 15

SubType
complement-of-9
Total
20
KnownAddend
5
Difficulty
normal

__ + 5 = 100

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Answer: 95

SubType
complement-of-9
Total
100
KnownAddend
5
Difficulty
normal

__ + 86 = 100

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Answer: 14

SubType
complement-of-9
Total
100
KnownAddend
86
Difficulty
normal