expert Set 100 Form Exercise

Input: 2 → [?] → 4, what is the rule?

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Answer: ×2

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

Input: 5 → [×2 + 1] → ?

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Answer: 11

SubType
find-output
Rule
×2 + 1
Input
5
Output
11
Difficulty
expert

Input: 3 → [?] → 7, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
3
Output
7
Difficulty
expert

? → [×3 - 2] → 25

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Answer: 9

SubType
find-input
Rule
×3 - 2
Input
9
Output
25
Difficulty
expert

? → [×2 + 1] → 7

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Answer: 3

SubType
find-input
Rule
×2 + 1
Input
3
Output
7
Difficulty
expert

Input: 1 → [×2 + 3] → ?

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Answer: 5

SubType
find-output
Rule
×2 + 3
Input
1
Output
5
Difficulty
expert

Input: 6 → [×3] → ?

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Answer: 18

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

Input: 1 → [?] → 2, what is the rule?

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Answer: ×2

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