function-machine/subtraction/starter · مجموعة 23

8 problems
1
Input: 8 → [×5] → ? =
2
Input: 9 → [?] → 18, what is the rule? =
3
Input: 4 → [?] → 20, what is the rule? =
4
? → [+10] → 19 =
5
Input: 3 → [-1] → ? =
6
Input: 4 → [+2] → ? =
7
Input: 2 → [?] → 10, what is the rule? =
8
Input: 1 → [×2] → ? =
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