Perform subtraction on the given unsigned binary numbers using the 2’s complement of the subtrahend. Where the result should be negative, find its 2’s complement and affix a minus sign. (a XXXXXXXXXXb...

Perform subtraction on the given unsigned binary numbers using the 2’s complement of the subtrahend. Where the result should be negative, find its 2’s complement and affix a minus sign.
(a) 10011 - 10010 (b) 100010 - 100110
(c) 1001 - 110101 (d) 101000 – 10101