starter Set 8 Form Exercise

[3 + ?] = 13

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Answer: 10

Lhs
  • 3
  • ?
Rhs
13

[2 + ?] = 20

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Answer: 18

Lhs
  • 2
  • ?
Rhs
20

[1 + 6 + ?] = 23

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Answer: 16

Lhs
  • 1
  • 6
  • ?
Rhs
23

[3 + ?] = 6

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Answer: 3

Lhs
  • 3
  • ?
Rhs
6

[?] = 13

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Answer: 13

Lhs
  • ?
Rhs
13

[1 + 2 + ?] = 6

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Answer: 3

Lhs
  • 1
  • 2
  • ?
Rhs
6

[?] = 6

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Answer: 6

Lhs
  • ?
Rhs
6

[?] = 9

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Answer: 9

Lhs
  • ?
Rhs
9

[2 + 2 + ?] = 6

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Answer: 2

Lhs
  • 2
  • 2
  • ?
Rhs
6

[2 + 2 + ?] = 11

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Answer: 7

Lhs
  • 2
  • 2
  • ?
Rhs
11

[7 + ?] = 20

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Answer: 13

Lhs
  • 7
  • ?
Rhs
20

[3 + 7 + ?] = 23

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Answer: 13

Lhs
  • 3
  • 7
  • ?
Rhs
23

[2 + ?] = 21

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Answer: 19

Lhs
  • 2
  • ?
Rhs
21

[3 + 1 + ?] = 15

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Answer: 11

Lhs
  • 3
  • 1
  • ?
Rhs
15

[4 + ?] = 13

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Answer: 9

Lhs
  • 4
  • ?
Rhs
13

[5 + ?] = 12

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Answer: 7

Lhs
  • 5
  • ?
Rhs
12

[3 + ?] = 8

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Answer: 5

Lhs
  • 3
  • ?
Rhs
8

[1 + 1 + ?] = 5

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Answer: 3

Lhs
  • 1
  • 1
  • ?
Rhs
5

[1 + 1 + ?] = 20

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Answer: 18

Lhs
  • 1
  • 1
  • ?
Rhs
20

[?] = 6

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Answer: 6

Lhs
  • ?
Rhs
6