expert Set 89 Form Exercise

Input: 7 → [?] → 22, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
7
Output
22
Difficulty
expert

Input: 1 → [?] → 0, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
1
Output
0
Difficulty
expert

Input: 3 → [?] → 8, what is the rule?

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Answer: +5

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

? → [+5] → 9

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Answer: 4

SubType
find-input
Rule
+5
Input
4
Output
9
Difficulty
expert

Input: 9 → [?] → 18, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
9
Output
18
Difficulty
expert

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
expert

Input: 8 → [?] → 19, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
8
Output
19
Difficulty
expert

Input: 6 → [-1] → ?

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Answer: 5

SubType
find-output
Rule
-1
Input
6
Output
5
Difficulty
expert