# Electronics - Arithmetic Operations and Circuits - Discussion

### Discussion :: Arithmetic Operations and Circuits - General Questions (Q.No.3)

3.

Adding the two's complement of –11 + (–2) will yield which two's complement answer?

 [A]. 1110 1101 [B]. 1111 1001 [C]. 1111 0011 [D]. 1110 1001

Explanation:

No answer description available for this question.

 Harish said: (Jun 29, 2011) Can anyone explain me ?

 Kavi said: (Aug 18, 2011) for (11) --> 1011 1's Com (11) --> 0100 2's Com (11) --> 0101 for (2) --> 0010 1's Com (2) --> 1101 2's Com (2) --> 1110 Add 2's Comp (11) & (2) 0101 + 1110 --> 10011 --> last digit carry so eliminate -->0011 for negative sign we can use 1. so the ans is 1111 0011

 Sharanya said: (Jun 17, 2013) It is simple. -11+(-2)=-13. So taking 2's complement for -13, we get, 1111 0011.

 Priya said: (Sep 1, 2013) For negative sign we use only one 1. Then how did you said @Kavi? please explain me?

 Kimsy said: (May 18, 2016) Thank you @Sharanya. You made it in short and easy way!

 Albert said: (Nov 19, 2016) @Kimsy it's not that easy & @ Sharanya you explained it wrong. We have to add 2's complement of (-11) and (-2). But Sharanya explained the simple addition and then 2's complement of the result.

 Goud said: (Jul 22, 2018) Thank you @Kavi.