function-machine/subtraction/hard · Sada 51

8 problems
1
? → [+2] → 12 =
2
? → [×2] → 4 =
3
Input: 9 → [?] → 21, what is the rule? =
4
Input: 4 → [-1] → ? =
5
? → [×3 - 2] → 7 =
6
Input: 10 → [×2 + 1] → ? =
7
? → [-1] → 3 =
8
Input: 7 → [-1] → ? =
Easy Math Print · easymathprint.com