function-machine/subtraction/expert · Set 27

8 problems
1
? → [+4 ×2] → 28 =
2
Input: 2 → [×2 + 3] → ? =
3
Input: 3 → [?] → 9, what is the rule? =
4
Input: 8 → [+2] → ? =
5
Input: 9 → [?] → 6, what is the rule? =
6
Input: 5 → [×3 - 2] → ? =
7
Input: 9 → [-1] → ? =
8
Input: 7 → [?] → 15, what is the rule? =
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