Easy · Set 44

8 problems
1
? → [×5] → 45 =
2
? → [×2] → 2 =
3
Input: 10 → [-3] → ? =
4
Input: 3 → [×5] → ? =
5
? → [×5] → 15 =
6
? → [-1] → 2 =
7
Input: 2 → [?] → 4, what is the rule? =
8
Input: 4 → [?] → 1, what is the rule? =
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