function-machine/addition/expert · Sada 96

8 problems
1
Input: 10 → [?] → 20, what is the rule? =
2
Input: 10 → [?] → 30, what is the rule? =
3
Input: 9 → [?] → 45, what is the rule? =
4
? → [×3] → 9 =
5
Input: 4 → [-1] → ? =
6
Input: 4 → [×2] → ? =
7
Input: 10 → [?] → 28, what is the rule? =
8
Input: 2 → [+5] → ? =
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