function-machine/multiplication/hard · Set 70

8 problems
1
Input: 1 → [×2] → ? =
2
? → [+2] → 7 =
3
Input: 2 → [?] → 12, what is the rule? =
4
Input: 1 → [?] → 5, what is the rule? =
5
Input: 9 → [-1] → ? =
6
Input: 8 → [?] → 18, what is the rule? =
7
Input: 8 → [+5] → ? =
8
? → [×2 + 3] → 17 =
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