hard Set 3 Form Exercise

[2 + 1 + ?] = 6

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Answer: 3

Lhs
  • 2
  • 1
  • ?
Rhs
6

[4 + 3 + ?] = 25

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Answer: 18

Lhs
  • 4
  • 3
  • ?
Rhs
25

[3 + 2 + ?] = 17

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Answer: 12

Lhs
  • 3
  • 2
  • ?
Rhs
17

[?] = 21

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Answer: 21

Lhs
  • ?
Rhs
21

[3 + ?] = 8

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Answer: 5

Lhs
  • 3
  • ?
Rhs
8

[4 + ?] = 9

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Answer: 5

Lhs
  • 4
  • ?
Rhs
9

[1 + 4 + ?] = 20

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Answer: 15

Lhs
  • 1
  • 4
  • ?
Rhs
20

[9 + ?] = 22

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Answer: 13

Lhs
  • 9
  • ?
Rhs
22

[?] = 25

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Answer: 25

Lhs
  • ?
Rhs
25

[?] = 5

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Answer: 5

Lhs
  • ?
Rhs
5

[?] = 19

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Answer: 19

Lhs
  • ?
Rhs
19

[?] = 32

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Answer: 32

Lhs
  • ?
Rhs
32

[3 + 5 + ?] = 16

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Answer: 8

Lhs
  • 3
  • 5
  • ?
Rhs
16

[5 + 7 + ?] = 26

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Answer: 14

Lhs
  • 5
  • 7
  • ?
Rhs
26

[?] = 30

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Answer: 30

Lhs
  • ?
Rhs
30

[?] = 11

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Answer: 11

Lhs
  • ?
Rhs
11

[9 + ?] = 18

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Answer: 9

Lhs
  • 9
  • ?
Rhs
18

[3 + ?] = 11

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Answer: 8

Lhs
  • 3
  • ?
Rhs
11

[1 + 2 + ?] = 8

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Answer: 5

Lhs
  • 1
  • 2
  • ?
Rhs
8

[8 + ?] = 21

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Answer: 13

Lhs
  • 8
  • ?
Rhs
21