hard Set 81 Form Exercise

Input: 9 → [?] → 11, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
9
Output
11
Difficulty
hard

Input: 1 → [?] → 5, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
1
Output
5
Difficulty
hard

Input: 6 → [?] → 18, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
6
Output
18
Difficulty
hard

Input: 1 → [?] → 6, what is the rule?

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Answer: +5

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

Input: 10 → [-3] → ?

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Answer: 7

SubType
find-output
Rule
-3
Input
10
Output
7
Difficulty
hard

Input: 9 → [?] → 25, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
9
Output
25
Difficulty
hard

Input: 1 → [×5] → ?

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Answer: 5

SubType
find-output
Rule
×5
Input
1
Output
5
Difficulty
hard

? → [+10] → 18

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Answer: 8

SubType
find-input
Rule
+10
Input
8
Output
18
Difficulty
hard