expert Set 98 Form Exercise

? → [×2 + 3] → 23

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Answer: 10

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

Input: 2 → [×3 - 2] → ?

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Answer: 4

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

Input: 9 → [?] → 11, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
9
Output
11
Difficulty
expert

? → [+10] → 15

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Answer: 5

SubType
find-input
Rule
+10
Input
5
Output
15
Difficulty
expert

? → [+4 ×2] → 10

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Answer: 1

SubType
find-input
Rule
+4 ×2
Input
1
Output
10
Difficulty
expert

? → [+5] → 15

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Answer: 10

SubType
find-input
Rule
+5
Input
10
Output
15
Difficulty
expert

Input: 3 → [?] → 7, what is the rule?

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Answer: ×3 - 2

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

? → [×5] → 15

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Answer: 3

SubType
find-input
Rule
×5
Input
3
Output
15
Difficulty
expert