hard Set 98 Form Exercise

? → [-1] → 4

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Answer: 5

SubType
find-input
Rule
-1
Input
5
Output
4
Difficulty
hard

? → [+5] → 6

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Answer: 1

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

? → [-1] → 7

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Answer: 8

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

Input: 3 → [?] → 8, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
3
Output
8
Difficulty
hard

Input: 3 → [?] → 6, what is the rule?

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Answer: ×2

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

Input: 5 → [×2] → ?

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Answer: 10

SubType
find-output
Rule
×2
Input
5
Output
10
Difficulty
hard

Input: 1 → [?] → 11, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
1
Output
11
Difficulty
hard

Input: 6 → [×2 + 3] → ?

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Answer: 15

SubType
find-output
Rule
×2 + 3
Input
6
Output
15
Difficulty
hard