function-machine/multiplication/easy · 套题 16

7 problems
1
Input: 2 → [-1] → ? =
2
? → [×5] → 15 =
3
Input: 9 → [?] → 27, what is the rule? =
4
? → [-1] → 9 =
5
? → [+5] → 8 =
6
? → [×3] → 6 =
7
? → [×3] → 24 =
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