function-machine/addition/easy · Set 66

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