medium Set 86 Form Exercise

? → [+4 ×2] → 22

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Answer: 7

SubType
find-input
Rule
+4 ×2
Input
7
Output
22
Difficulty
medium

Input: 7 → [?] → 6, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
7
Output
6
Difficulty
medium

? → [×3 - 2] → 13

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Answer: 5

SubType
find-input
Rule
×3 - 2
Input
5
Output
13
Difficulty
medium

Input: 2 → [?] → 12, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
2
Output
12
Difficulty
medium

Input: 9 → [?] → 21, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
9
Output
21
Difficulty
medium

Input: 4 → [?] → 6, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
4
Output
6
Difficulty
medium

Input: 4 → [-3] → ?

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Answer: 1

SubType
find-output
Rule
-3
Input
4
Output
1
Difficulty
medium

Input: 6 → [×3] → ?

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Answer: 18

SubType
find-output
Rule
×3
Input
6
Output
18
Difficulty
medium