function-machine/addition/medium · Set 40

8 problems
1
? → [+4 ×2] → 16 =
2
Input: 5 → [-1] → ? =
3
Input: 10 → [?] → 20, what is the rule? =
4
Input: 9 → [×2 + 1] → ? =
5
Input: 1 → [?] → 0, what is the rule? =
6
Input: 9 → [+10] → ? =
7
? → [+5] → 14 =
8
Input: 6 → [?] → 5, what is the rule? =
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