Medium · Set 71

8 problems
1
Input: 4 → [?] → 11, what is the rule? =
2
Input: 3 → [×3] → ? =
3
Input: 9 → [+4 ×2] → ? =
4
Input: 5 → [?] → 10, what is the rule? =
5
? → [×2] → 20 =
6
Input: 7 → [?] → 21, what is the rule? =
7
? → [×3 - 2] → 25 =
8
Input: 9 → [+5] → ? =
Easy Math Print · easymathprint.com