hard Set 72 Form Exercise

Input: 10 → [×2] → ?

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Answer: 20

SubType
find-output
Rule
×2
Input
10
Output
20
Difficulty
hard

Input: 7 → [+5] → ?

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Answer: 12

SubType
find-output
Rule
+5
Input
7
Output
12
Difficulty
hard

Input: 10 → [+4 ×2] → ?

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Answer: 28

SubType
find-output
Rule
+4 ×2
Input
10
Output
28
Difficulty
hard

? → [×3 - 2] → 4

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Answer: 2

SubType
find-input
Rule
×3 - 2
Input
2
Output
4
Difficulty
hard

? → [+4 ×2] → 12

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Answer: 2

SubType
find-input
Rule
+4 ×2
Input
2
Output
12
Difficulty
hard

? → [+2] → 10

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Answer: 8

SubType
find-input
Rule
+2
Input
8
Output
10
Difficulty
hard

? → [-1] → 5

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Answer: 6

SubType
find-input
Rule
-1
Input
6
Output
5
Difficulty
hard

Input: 4 → [+10] → ?

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Answer: 14

SubType
find-output
Rule
+10
Input
4
Output
14
Difficulty
hard