function-machine/addition/medium · Set 90

8 problems
1
Input: 9 → [×2] → ? =
2
Input: 9 → [×3 - 2] → ? =
3
Input: 7 → [?] → 4, what is the rule? =
4
Input: 5 → [?] → 18, what is the rule? =
5
Input: 8 → [+5] → ? =
6
Input: 10 → [?] → 21, what is the rule? =
7
Input: 7 → [?] → 12, what is the rule? =
8
Input: 6 → [?] → 13, what is the rule? =
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