4. Perform the following operations using 2's complement 8-bits binary numbers then verify (if possible) the operation using decimal equivalents (a) 00110011 - 01000000 = (b) 10111001 + 11010110 = (c) 11010110 + 10101001 =

5. Write the following in an exponential (scientic normalized) notation, using a 16-bit format, with a 10-bit signed mantissa and a 6-bit signed exponent: (a) 1001:011v2 (b) -20.75v10 (c) 0.203125v10 (d) -1=32v10