Perform each subtraction in the 2s complement form:
(a) 00110011 - 00010000
(b) 01100101 - 11101000

a) (a) 00100011 (b) 01001101
b) (a) 00100011 (b) 10011101
c) (a) 00100011 (b) 01100101
d) (a) 00100011 (b) 10010111