function-machine/subtraction/hard · Set 33

8 problems
1
Input: 2 → [-1] → ? =
2
? → [-1] → 0 =
3
Input: 6 → [+4 ×2] → ? =
4
Input: 4 → [×2 + 1] → ? =
5
Input: 9 → [?] → 45, what is the rule? =
6
? → [×2 + 3] → 13 =
7
Input: 2 → [?] → 7, what is the rule? =
8
Input: 10 → [×3] → ? =
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