expert Set 31 Form Exercise

Input: 3 → [+10] → ?

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Answer: 13

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

Input: 7 → [?] → 12, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
7
Output
12
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: 8 → [×2] → ?

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Answer: 16

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

? → [×2 + 3] → 5

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Answer: 1

SubType
find-input
Rule
×2 + 3
Input
1
Output
5
Difficulty
expert

Input: 5 → [×2 + 3] → ?

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Answer: 13

SubType
find-output
Rule
×2 + 3
Input
5
Output
13
Difficulty
expert

Input: 2 → [+4 ×2] → ?

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Answer: 12

SubType
find-output
Rule
+4 ×2
Input
2
Output
12
Difficulty
expert

? → [×3] → 30

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Answer: 10

SubType
find-input
Rule
×3
Input
10
Output
30
Difficulty
expert