expert Set 70 Form Exercise

? → [-1] → 2

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Answer: 3

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

? → [×5] → 25

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Answer: 5

SubType
find-input
Rule
×5
Input
5
Output
25
Difficulty
expert

Input: 6 → [?] → 5, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
6
Output
5
Difficulty
expert

Input: 10 → [-3] → ?

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Answer: 7

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

Input: 9 → [?] → 14, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
9
Output
14
Difficulty
expert

Input: 9 → [?] → 18, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
9
Output
18
Difficulty
expert

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
expert

Input: 4 → [+5] → ?

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Answer: 9

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