expert Set 13 Form Exercise

? → [-3] → 2

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Answer: 5

SubType
find-input
Rule
-3
Input
5
Output
2
Difficulty
expert

Input: 9 → [?] → 11, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
9
Output
11
Difficulty
expert

Input: 2 → [-1] → ?

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Answer: 1

SubType
find-output
Rule
-1
Input
2
Output
1
Difficulty
expert

? → [×2 + 3] → 17

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Answer: 7

SubType
find-input
Rule
×2 + 3
Input
7
Output
17
Difficulty
expert

Input: 9 → [-1] → ?

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Answer: 8

SubType
find-output
Rule
-1
Input
9
Output
8
Difficulty
expert

? → [-1] → 1

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Answer: 2

SubType
find-input
Rule
-1
Input
2
Output
1
Difficulty
expert

Input: 1 → [?] → 10, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
1
Output
10
Difficulty
expert

Input: 8 → [×5] → ?

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Answer: 40

SubType
find-output
Rule
×5
Input
8
Output
40
Difficulty
expert