function-machine/subtraction/expert · Set 64

8 problems
1
Input: 9 → [?] → 45, what is the rule? =
2
? → [×2] → 4 =
3
Input: 7 → [×3] → ? =
4
Input: 6 → [+2] → ? =
5
? → [+10] → 18 =
6
? → [×3] → 18 =
7
Input: 1 → [?] → 5, what is the rule? =
8
? → [×3] → 30 =
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