Question

Determine the 10s complement for the following decimal number:

20000

Answer 1

Using the rule for 10s complement(1. All the zeros at the right-hand end of the number remain as zeros in the answer. 2. The rightmost non-zero digit d of the number is replaced by 10 - d in the answer. 3. Each other digit d is replaced by 9 - d. ) I get :\[90000-20000=70000\]