Question

I have 4 different single digit numbers.

Answer 1

Answer:

Step-by-step explanation:

The third digit can be 8 6 4 2 or 0

The last digit can be   4 3 2 1  or 0

The second digit         8 4 0    which makes the last digit 2 1 0

The first digit is 3

The choices are

The first digit is 3.  That's all you can be sure of. Lets assume zero is not a choice.

3 8 4 2

3 4 2 1