function-machine/multiplication/starter · 套题 15

8 problems
1
Input: 2 → [?] → 7, what is the rule? =
2
Input: 8 → [?] → 16, what is the rule? =
3
Input: 1 → [?] → 5, what is the rule? =
4
Input: 9 → [?] → 45, what is the rule? =
5
? → [-1] → 2 =
6
? → [+2] → 3 =
7
Input: 9 → [?] → 27, what is the rule? =
8
Input: 1 → [-1] → ? =
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