Medium · Set 26

8 problems
1
Input: 7 → [?] → 12, what is the rule? =
2
Input: 4 → [×5] → ? =
3
Input: 10 → [-1] → ? =
4
Input: 6 → [?] → 18, what is the rule? =
5
Input: 10 → [-3] → ? =
6
Input: 9 → [×3 - 2] → ? =
7
? → [×2 + 1] → 17 =
8
Input: 8 → [+10] → ? =
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