Medium · Set 93

8 problems
1
Input: 3 → [?] → 13, what is the rule? =
2
Input: 6 → [?] → 12, what is the rule? =
3
Input: 9 → [-3] → ? =
4
Input: 9 → [×5] → ? =
5
Input: 9 → [?] → 14, what is the rule? =
6
Input: 8 → [?] → 18, what is the rule? =
7
Input: 1 → [+10] → ? =
8
? → [-3] → 1 =
Easy Math Print · easymathprint.com