Multiplication Easy · Set 94

7 problems
1
Input: 5 → [×3] → ? =
2
? → [×2] → 18 =
3
Input: 1 → [?] → 0, what is the rule? =
4
Input: 4 → [×3] → ? =
5
Input: 3 → [?] → 6, what is the rule? =
6
? → [×3] → 12 =
7
? → [×5] → 5 =
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