expert Set 64 Form Exercise

Input: 8 → [?] → 16, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
8
Output
16
Difficulty
expert

? → [-3] → 3

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Answer: 6

SubType
find-input
Rule
-3
Input
6
Output
3
Difficulty
expert

Input: 6 → [+4 ×2] → ?

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Answer: 20

SubType
find-output
Rule
+4 ×2
Input
6
Output
20
Difficulty
expert

? → [×5] → 40

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Answer: 8

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

? → [-1] → 4

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Answer: 5

SubType
find-input
Rule
-1
Input
5
Output
4
Difficulty
expert

Input: 10 → [?] → 20, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
10
Output
20
Difficulty
expert

Input: 6 → [×2 + 1] → ?

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Answer: 13

SubType
find-output
Rule
×2 + 1
Input
6
Output
13
Difficulty
expert

Input: 7 → [+10] → ?

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Answer: 17

SubType
find-output
Rule
+10
Input
7
Output
17
Difficulty
expert