expert Set 99 Form Exercise

Input: 10 → [-1] → ?

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Answer: 9

SubType
find-output
Rule
-1
Input
10
Output
9
Difficulty
expert

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: 6 → [?] → 18, what is the rule?

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Answer: ×3

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

? → [+4 ×2] → 14

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Answer: 3

SubType
find-input
Rule
+4 ×2
Input
3
Output
14
Difficulty
expert

Input: 4 → [?] → 9, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
4
Output
9
Difficulty
expert

Input: 10 → [×5] → ?

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Answer: 50

SubType
find-output
Rule
×5
Input
10
Output
50
Difficulty
expert

? → [×5] → 10

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Answer: 2

SubType
find-input
Rule
×5
Input
2
Output
10
Difficulty
expert

Input: 3 → [×3] → ?

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Answer: 9

SubType
find-output
Rule
×3
Input
3
Output
9
Difficulty
expert