0123 or 1234
How about: 97531
1,024
10,234 is the smallest 5-digit number meeting your restrictions.
10234
0
9876-102=9774The largest 4 digit number, without repetition, is 9876.The smallest 3 digit number is 102.Their difference is 9774.
The smallest 2-digit WHOLE number (without any zeroes behind it) should be 10.
The largest 4 digit number with repetition is 9999. The smallest 3 digit number without repetition is 102 9999 - 102 = 9897
9774
111
9
1,234,567