01489
The smallest four-digit number not using zero is 1000. In a four-digit number, the first digit cannot be zero, so the smallest possible value for the first digit is 1. The remaining three digits can be any number from 0-9, so the smallest possible four-digit number is 1000.
1111
It is -987654. The smallest POSITIVE number is 102345.
0.12369
123478
The smallest four-digit number not using zero is 1000. In a four-digit number, the first digit cannot be zero, so the smallest possible value for the first digit is 1. The remaining three digits can be any number from 0-9, so the smallest possible four-digit number is 1000.
1111
19
Since there are only five different digits, a 6-digit number can only be generated if a digit can be repeated. If digits can be repeated, the smallest 6-digit number is 111111.
It is -987654. The smallest POSITIVE number is 102345.
0.12369
1023
From left to right, pick the smallest possible digit every time. This will give you the smallest possible number.
12346
11112
1,023.
123478