function-machine/multiplication/starter · Set 23

8 problems
1
Input: 3 → [?] → 13, what is the rule? =
2
? → [×3] → 21 =
3
? → [×5] → 5 =
4
Input: 10 → [+10] → ? =
5
Input: 4 → [?] → 1, what is the rule? =
6
? → [×5] → 30 =
7
Input: 2 → [?] → 10, what is the rule? =
8
Input: 3 → [-3] → ? =
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