function-machine/subtraction/expert · Set 99

8 problems
1
Input: 10 → [-1] → ? =
2
Input: 2 → [?] → 4, what is the rule? =
3
Input: 6 → [?] → 18, what is the rule? =
4
? → [+4 ×2] → 14 =
5
Input: 4 → [?] → 9, what is the rule? =
6
Input: 10 → [×5] → ? =
7
? → [×5] → 10 =
8
Input: 3 → [×3] → ? =
Easy Math Print · easymathprint.com