function-machine/addition-easy · Set 49

8 problems
1
Input: 7 → [?] → 9, what is the rule? =
2
Input: 10 → [?] → 15, what is the rule? =
3
? → [×2] → 18 =
4
Input: 3 → [-3] → ? =
5
Input: 3 → [?] → 0, what is the rule? =
6
? → [×3] → 27 =
7
Input: 2 → [?] → 10, what is the rule? =
8
Input: 3 → [×5] → ? =
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