hard Set 12 Form Exercise

Input: 7 → [-1] → ?

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Answer: 6

SubType
find-output
Rule
-1
Input
7
Output
6
Difficulty
hard

? → [-3] → 1

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Answer: 4

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

Input: 4 → [-1] → ?

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Answer: 3

SubType
find-output
Rule
-1
Input
4
Output
3
Difficulty
hard

Input: 9 → [×2 + 1] → ?

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Answer: 19

SubType
find-output
Rule
×2 + 1
Input
9
Output
19
Difficulty
hard

? → [×2 + 3] → 5

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Answer: 1

SubType
find-input
Rule
×2 + 3
Input
1
Output
5
Difficulty
hard

Input: 5 → [?] → 7, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
5
Output
7
Difficulty
hard

Input: 6 → [?] → 16, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
6
Output
16
Difficulty
hard

Input: 1 → [+2] → ?

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Answer: 3

SubType
find-output
Rule
+2
Input
1
Output
3
Difficulty
hard