hard Set 63 Form Exercise

Input: 8 → [+4 ×2] → ?

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Answer: 24

SubType
find-output
Rule
+4 ×2
Input
8
Output
24
Difficulty
hard

? → [×5] → 30

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Answer: 6

SubType
find-input
Rule
×5
Input
6
Output
30
Difficulty
hard

Input: 5 → [×5] → ?

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Answer: 25

SubType
find-output
Rule
×5
Input
5
Output
25
Difficulty
hard

? → [×5] → 20

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Answer: 4

SubType
find-input
Rule
×5
Input
4
Output
20
Difficulty
hard

Input: 7 → [-3] → ?

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Answer: 4

SubType
find-output
Rule
-3
Input
7
Output
4
Difficulty
hard

? → [×2] → 18

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Answer: 9

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

? → [-3] → 2

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Answer: 5

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

? → [×2 + 3] → 13

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Answer: 5

SubType
find-input
Rule
×2 + 3
Input
5
Output
13
Difficulty
hard