easy Set 55 Form Exercise

? → [-1] → 7

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Answer: 8

SubType
find-input
Rule
-1
Input
8
Output
7
Difficulty
normal

Input: 5 → [+10] → ?

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Answer: 15

SubType
find-output
Rule
+10
Input
5
Output
15
Difficulty
normal

Input: 6 → [×3] → ?

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Answer: 18

SubType
find-output
Rule
×3
Input
6
Output
18
Difficulty
normal

? → [+10] → 15

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Answer: 5

SubType
find-input
Rule
+10
Input
5
Output
15
Difficulty
normal

? → [+2] → 12

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Answer: 10

SubType
find-input
Rule
+2
Input
10
Output
12
Difficulty
normal

? → [-1] → 6

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Answer: 7

SubType
find-input
Rule
-1
Input
7
Output
6
Difficulty
normal

Input: 1 → [?] → 2, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
1
Output
2
Difficulty
normal