Question 1073327
For the first number, you have the digits 2,3,4,5,7,and 8, or 6 digits possible. The 2nd and third digits can be 0,1,2,3,4,5,7,8, or 8 digits possible. So the number of combinations possible is:
6x8x8=384 different numbers for the ships in the fleet. ☺☺☺