expert Set 3 Form Exercise

[1 + 1 + ?] = 4

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Answer: 2

Lhs
  • 1
  • 1
  • ?
Rhs
4

[7 + ?] = 20

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Answer: 13

Lhs
  • 7
  • ?
Rhs
20

[?] = 9

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Answer: 9

Lhs
  • ?
Rhs
9

[4 + 5 + ?] = 19

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Answer: 10

Lhs
  • 4
  • 5
  • ?
Rhs
19

[2 + 1 + ?] = 7

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Answer: 4

Lhs
  • 2
  • 1
  • ?
Rhs
7

[3 + ?] = 11

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Answer: 8

Lhs
  • 3
  • ?
Rhs
11

[?] = 4

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Answer: 4

Lhs
  • ?
Rhs
4

[2 + 1 + ?] = 12

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Answer: 9

Lhs
  • 2
  • 1
  • ?
Rhs
12

[5 + ?] = 17

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Answer: 12

Lhs
  • 5
  • ?
Rhs
17

[1 + ?] = 23

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Answer: 22

Lhs
  • 1
  • ?
Rhs
23

[2 + 1 + ?] = 11

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Answer: 8

Lhs
  • 2
  • 1
  • ?
Rhs
11

[?] = 19

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Answer: 19

Lhs
  • ?
Rhs
19

[2 + 2 + ?] = 12

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Answer: 8

Lhs
  • 2
  • 2
  • ?
Rhs
12

[?] = 18

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Answer: 18

Lhs
  • ?
Rhs
18

[2 + ?] = 10

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Answer: 8

Lhs
  • 2
  • ?
Rhs
10

[3 + ?] = 14

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Answer: 11

Lhs
  • 3
  • ?
Rhs
14

[3 + ?] = 14

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Answer: 11

Lhs
  • 3
  • ?
Rhs
14

[?] = 6

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Answer: 6

Lhs
  • ?
Rhs
6

[1 + ?] = 23

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Answer: 22

Lhs
  • 1
  • ?
Rhs
23

[1 + 3 + ?] = 20

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Answer: 16

Lhs
  • 1
  • 3
  • ?
Rhs
20