Mixed Medium · Set 55

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