Question

what are the three smallest 7 digit whole numbers that can be made using only the digits 4,3,0,9,2,8,and 5? Each digit must be used exactly one time in each number.

Answer 1

clearly, they will begin with the 3 smallest digits first:

203xxxx
204xxxx
205xxxx

in each case, fill in the x's with the remaining digits, from least to most.

Answer 2

I need help with this one