function-machine/division/medium · 套题 33

8 problems
1
Input: 6 → [+4 ×2] → ? =
2
Input: 7 → [+5] → ? =
3
Input: 10 → [?] → 23, what is the rule? =
4
? → [×3] → 3 =
5
Input: 10 → [?] → 20, what is the rule? =
6
Input: 7 → [?] → 21, what is the rule? =
7
Input: 9 → [×2 + 1] → ? =
8
Input: 5 → [-1] → ? =
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