function-machine/multiplication/hard · Set 81

8 problems
1
Input: 5 → [?] → 10, what is the rule? =
2
Input: 5 → [+2] → ? =
3
Input: 8 → [?] → 16, what is the rule? =
4
Input: 2 → [?] → 6, what is the rule? =
5
Input: 6 → [?] → 15, what is the rule? =
6
? → [+5] → 12 =
7
Input: 9 → [?] → 26, what is the rule? =
8
Input: 1 → [×5] → ? =
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