function-machine/mixed-ops/expert · Set 50

8 problems
1
Input: 1 → [?] → 3, what is the rule? =
2
? → [×5] → 25 =
3
Input: 5 → [-1] → ? =
4
Input: 3 → [?] → 15, what is the rule? =
5
Input: 8 → [-3] → ? =
6
Input: 4 → [-3] → ? =
7
Input: 7 → [-1] → ? =
8
Input: 3 → [?] → 0, what is the rule? =
Easy Math Print · easymathprint.com