starter Set 2 Form Exercise

[2 + ?] = 4

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Answer: 2

Lhs
  • 2
  • ?
Rhs
4

[?] = 16

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Answer: 16

Lhs
  • ?
Rhs
16

[3 + 5 + ?] = 21

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Answer: 13

Lhs
  • 3
  • 5
  • ?
Rhs
21

[1 + ?] = 21

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Answer: 20

Lhs
  • 1
  • ?
Rhs
21

[?] = 7

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Answer: 7

Lhs
  • ?
Rhs
7

[?] = 4

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Answer: 4

Lhs
  • ?
Rhs
4

[9 + ?] = 18

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Answer: 9

Lhs
  • 9
  • ?
Rhs
18

[?] = 9

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Answer: 9

Lhs
  • ?
Rhs
9

[2 + 2 + ?] = 7

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Answer: 3

Lhs
  • 2
  • 2
  • ?
Rhs
7

[?] = 12

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Answer: 12

Lhs
  • ?
Rhs
12

[7 + ?] = 15

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Answer: 8

Lhs
  • 7
  • ?
Rhs
15

[2 + 2 + ?] = 6

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Answer: 2

Lhs
  • 2
  • 2
  • ?
Rhs
6

[?] = 17

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Answer: 17

Lhs
  • ?
Rhs
17

[?] = 14

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Answer: 14

Lhs
  • ?
Rhs
14

[?] = 12

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Answer: 12

Lhs
  • ?
Rhs
12

[?] = 20

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Answer: 20

Lhs
  • ?
Rhs
20

[2 + 1 + ?] = 13

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Answer: 10

Lhs
  • 2
  • 1
  • ?
Rhs
13

[?] = 11

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Answer: 11

Lhs
  • ?
Rhs
11

[1 + 1 + ?] = 11

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Answer: 9

Lhs
  • 1
  • 1
  • ?
Rhs
11

[4 + 4 + ?] = 20

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Answer: 12

Lhs
  • 4
  • 4
  • ?
Rhs
20