medium Set 54 Form Exercise

? → [-1] → 1

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Answer: 2

SubType
find-input
Rule
-1
Input
2
Output
1
Difficulty
medium

Input: 5 → [?] → 25, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
5
Output
25
Difficulty
medium

Input: 3 → [?] → 0, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
3
Output
0
Difficulty
medium

? → [×5] → 5

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Answer: 1

SubType
find-input
Rule
×5
Input
1
Output
5
Difficulty
medium

Input: 8 → [+2] → ?

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Answer: 10

SubType
find-output
Rule
+2
Input
8
Output
10
Difficulty
medium

? → [+2] → 5

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Answer: 3

SubType
find-input
Rule
+2
Input
3
Output
5
Difficulty
medium

Input: 2 → [?] → 6, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
2
Output
6
Difficulty
medium

Input: 5 → [×2 + 3] → ?

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Answer: 13

SubType
find-output
Rule
×2 + 3
Input
5
Output
13
Difficulty
medium