hard Set 80 Form Exercise

Input: 7 → [×2 + 1] → ?

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Answer: 15

SubType
find-output
Rule
×2 + 1
Input
7
Output
15
Difficulty
hard

Input: 4 → [+4 ×2] → ?

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Answer: 16

SubType
find-output
Rule
+4 ×2
Input
4
Output
16
Difficulty
hard

Input: 9 → [×3] → ?

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Answer: 27

SubType
find-output
Rule
×3
Input
9
Output
27
Difficulty
hard

? → [-3] → 0

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Answer: 3

SubType
find-input
Rule
-3
Input
3
Output
0
Difficulty
hard

? → [-1] → 8

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Answer: 9

SubType
find-input
Rule
-1
Input
9
Output
8
Difficulty
hard

? → [×2 + 1] → 11

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Answer: 5

SubType
find-input
Rule
×2 + 1
Input
5
Output
11
Difficulty
hard

Input: 8 → [×5] → ?

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Answer: 40

SubType
find-output
Rule
×5
Input
8
Output
40
Difficulty
hard