function-machine/multiplication/starter · Sada 77

7 problems
1
Input: 7 → [?] → 9, what is the rule? =
2
? → [×2] → 20 =
3
Input: 9 → [-1] → ? =
4
Input: 3 → [+2] → ? =
5
? → [×3] → 15 =
6
Input: 1 → [×2] → ? =
7
? → [+10] → 13 =
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