1. 24

2. 0

3. Digits must sum to a multiple of 3 and the last two digits must be divisible by 4.

4. 8

5. 17

6. 0

7. 33

   
   
   

8. 0

9. 8

10. The sum of the digits needs to be a multiple of 9 and the last 3 need to be divisible by 8.

Solve all problems before looking at the answers.