Question

Perform the subtraction using 1’s complement and 2’s complement methods. (i)11010 – 10000 (ii)11010 – 1101 (iii)100 - 110000

Answer 1

1.1010

2.9909

3.-109900

Hope you find useful.....

S.Harish Abhimanyu

Answer 2

Step by step solution:

1) 11010 - 10000

First take 2's complement of 10000. 2's complement can be found out:

10000 → 01111 + 1 = 10000

M = 11010 ; N = 10000

Here, M>N

Add M to 2's complement of N.

M = 11010

2's complement of N = 10000

The sum is 101010

Answer : 01010

Hence, answer for  (i) is 01010.

Similarly, the answer for (ii) is 9909.

The answer for (iii) is 10990.