function-machine/subtraction/hard · Set 26

8 problems
1
Input: 8 → [?] → 16, what is the rule? =
2
Input: 3 → [?] → 13, what is the rule? =
3
? → [+2] → 9 =
4
Input: 9 → [?] → 18, what is the rule? =
5
Input: 9 → [?] → 27, what is the rule? =
6
Input: 2 → [?] → 7, what is the rule? =
7
? → [×3] → 15 =
8
? → [×2] → 14 =
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