Digital Arithmetic Operations and Circuits - Technical MCQs

Q1:

Solve this binary problem: 01110010 – 01001000 =

A 00011010

B 00101010

C 01110010

D 00111100

ANS:B - 00101010

01001000 should be subtracted after doing 2's complement.
2's complement we get 10111000.
01110010 + 10111000 = 00101010.