function-machine/subtraction/expert · Sada 70

8 problems
1
Input: 9 → [?] → 27, what is the rule? =
2
Input: 10 → [+4 ×2] → ? =
3
? → [+10] → 15 =
4
Input: 1 → [?] → 1, what is the rule? =
5
Input: 9 → [×2 + 3] → ? =
6
Input: 10 → [?] → 20, what is the rule? =
7
Input: 4 → [×3 - 2] → ? =
8
? → [+4 ×2] → 12 =
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