expert Set 55 Form Exercise

Input: 8 → [×3 - 2] → ?

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Answer: 22

SubType
find-output
Rule
×3 - 2
Input
8
Output
22
Difficulty
expert

Input: 3 → [?] → 9, what is the rule?

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Answer: ×2 + 3

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

Input: 7 → [?] → 21, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
7
Output
21
Difficulty
expert

? → [+5] → 6

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Answer: 1

SubType
find-input
Rule
+5
Input
1
Output
6
Difficulty
expert

Input: 4 → [×3] → ?

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Answer: 12

SubType
find-output
Rule
×3
Input
4
Output
12
Difficulty
expert

? → [-3] → 7

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Answer: 10

SubType
find-input
Rule
-3
Input
10
Output
7
Difficulty
expert

? → [×3 - 2] → 13

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Answer: 5

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

? → [×3] → 24

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Answer: 8

SubType
find-input
Rule
×3
Input
8
Output
24
Difficulty
expert