starter Set 18 Form Exercise

? → [×2] → 12

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Answer: 6

SubType
find-input
Rule
×2
Input
6
Output
12
Difficulty
starter

Input: 4 → [?] → 14, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
4
Output
14
Difficulty
starter

Input: 10 → [?] → 7, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
10
Output
7
Difficulty
starter

Input: 10 → [?] → 9, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
10
Output
9
Difficulty
starter

? → [×3] → 15

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Answer: 5

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

? → [+10] → 12

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Answer: 2

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

? → [+5] → 9

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Answer: 4

SubType
find-input
Rule
+5
Input
4
Output
9
Difficulty
starter