expert Set 20 Form Exercise

Input: 9 → [×5] → ?

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Answer: 45

SubType
find-output
Rule
×5
Input
9
Output
45
Difficulty
expert

? → [+5] → 12

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Answer: 7

SubType
find-input
Rule
+5
Input
7
Output
12
Difficulty
expert

Input: 2 → [?] → 4, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
2
Output
4
Difficulty
expert

Input: 2 → [×5] → ?

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Answer: 10

SubType
find-output
Rule
×5
Input
2
Output
10
Difficulty
expert

Input: 10 → [?] → 50, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
10
Output
50
Difficulty
expert

? → [+10] → 19

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Answer: 9

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

Input: 2 → [×2 + 3] → ?

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Answer: 7

SubType
find-output
Rule
×2 + 3
Input
2
Output
7
Difficulty
expert

Input: 2 → [?] → 7, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
2
Output
7
Difficulty
expert