expert Set 70 Form Exercise

? → [-1] → 2

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Answer: 3

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

Input: 10 → [×2 + 3] → ?

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Answer: 23

SubType
find-output
Rule
×2 + 3
Input
10
Output
23
Difficulty
expert

Input: 10 → [-3] → ?

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Answer: 7

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

Input: 4 → [?] → 8, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
4
Output
8
Difficulty
expert

? → [+2] → 6

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Answer: 4

SubType
find-input
Rule
+2
Input
4
Output
6
Difficulty
expert

? → [×2] → 20

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Answer: 10

SubType
find-input
Rule
×2
Input
10
Output
20
Difficulty
expert

Input: 1 → [+10] → ?

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Answer: 11

SubType
find-output
Rule
+10
Input
1
Output
11
Difficulty
expert

Input: 9 → [?] → 19, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
9
Output
19
Difficulty
expert