To tackle this problem I started out by creating my largest odd number to do this I started out by taking the four largest numbers in the first set of 0-9:9,8,7 and 6 to then create my largest odd number 9867.I would also try to use this by utilizing numbers for other targets.
I would also use the same method as above to solve the largest even number.Using the strategy above to get the number 9876.I would also try to save numbers if I did this again.
Using the remaining digits I calculated that the largest multiple of 3 was 5442 .I can check this by finding the digital route and seeing if that number is divisible by 3.If I did this again I would I would try to save my 9 s to also use them in the largest multiple of 3.
To find the smallest multiple of 5 I started off by looking at how to create the smallest multiple of 5.To do this you have make the number in the units column have to be 0 or 5 .So using this rule I created the number 1005 which I then calculated was the smallest 4 digit number available with the list of the digits was 1005.
With my remaining digits I made my largest number which was also my number closest to 5000 it was 3442.