Medium · Set 85

8 problems
1
Input: 5 → [?] → 10, what is the rule? =
2
Input: 9 → [×2 + 1] → ? =
3
Input: 10 → [?] → 30, what is the rule? =
4
? → [+4 ×2] → 26 =
5
Input: 6 → [×5] → ? =
6
Input: 7 → [?] → 6, what is the rule? =
7
Input: 2 → [+4 ×2] → ? =
8
Input: 5 → [×5] → ? =
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