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Digital Arithmetic Operations and Circuits - Technical MCQs

Q1:

The two's-complement system is to be used to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.

A –14 and –13, –27

B –113 and –114, 227

C –27 and –13, 40

D –11 and –16, –27

ANS:A - –14 and –13, –27

11110010's 2's complement is not 00001110.

It's 00001101.