function-machine/mixed-ops/expert · Set 31

8 problems
1
Input: 6 → [?] → 8, what is the rule? =
2
Input: 10 → [?] → 15, what is the rule? =
3
? → [×2 + 3] → 21 =
4
Input: 6 → [×3] → ? =
5
Input: 7 → [?] → 19, what is the rule? =
6
Input: 2 → [×2 + 1] → ? =
7
Input: 1 → [?] → 3, what is the rule? =
8
? → [-3] → 0 =
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