starter Set 25 Form Exercise

Input: 4 → [?] → 3, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
4
Output
3
Difficulty
starter

? → [×2] → 18

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Answer: 9

SubType
find-input
Rule
×2
Input
9
Output
18
Difficulty
starter

Input: 2 → [×3] → ?

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Answer: 6

SubType
find-output
Rule
×3
Input
2
Output
6
Difficulty
starter

Input: 2 → [?] → 4, what is the rule?

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Answer: ×2

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

Input: 5 → [?] → 15, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
5
Output
15
Difficulty
starter

? → [-1] → 3

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Answer: 4

SubType
find-input
Rule
-1
Input
4
Output
3
Difficulty
starter

Input: 2 → [+2] → ?

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Answer: 4

SubType
find-output
Rule
+2
Input
2
Output
4
Difficulty
starter

? → [+2] → 9

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Answer: 7

SubType
find-input
Rule
+2
Input
7
Output
9
Difficulty
starter