expert Set 70 Form Exercise

Input: 2 → [?] → 12, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
2
Output
12
Difficulty
expert

? → [+2] → 12

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Answer: 10

SubType
find-input
Rule
+2
Input
10
Output
12
Difficulty
expert

Input: 5 → [+5] → ?

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Answer: 10

SubType
find-output
Rule
+5
Input
5
Output
10
Difficulty
expert

Input: 7 → [?] → 21, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
7
Output
21
Difficulty
expert

Input: 3 → [+10] → ?

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Answer: 13

SubType
find-output
Rule
+10
Input
3
Output
13
Difficulty
expert

? → [×2] → 16

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Answer: 8

SubType
find-input
Rule
×2
Input
8
Output
16
Difficulty
expert

? → [+10] → 18

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Answer: 8

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

? → [+2] → 10

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Answer: 8

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