it's impossible because the sum of any two odd numbers equals an even number; odd# + odd# = even#. even# +even# = even#. odd# + odd# + odd# + odd# = even#.
8889
The largest 4 digit number with repetition is 9999. The smallest 3 digit number without repetition is 102 9999 - 102 = 9897
9774
Largest 4 digit number with repetition is 9999 Largest 3 digit number without repetition is 987 Difference is 9999 - 987 = 9012.
9876-987=8889
8888
9876 - 123= 9753
9,876 without any number used more than once, 9,898 without side-by-side repetition, and 9,897 for a number without pattern.
Twentyone follows twenty
9876-102=9774The largest 4 digit number, without repetition, is 9876.The smallest 3 digit number is 102.Their difference is 9774.
9876-102 9704
9999