function-machine/multiplication/medium · Set 26

8 problems
1
Input: 9 → [?] → 25, what is the rule? =
2
Input: 3 → [?] → 6, what is the rule? =
3
Input: 7 → [?] → 21, what is the rule? =
4
? → [×2] → 8 =
5
Input: 8 → [?] → 40, what is the rule? =
6
Input: 3 → [-3] → ? =
7
Input: 3 → [×2] → ? =
8
? → [×3] → 12 =
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