0
$\begingroup$

From an answer sheet ....

$$0110.10_2 – 0011.01_2 = 0110.10_2 + 1100.10_{1s} = 0011.01_{1s}$$

My working from my understanding ...

 1  1  
 0110.10
 1100.10 +
----------
10011.00

How did the .01 appear

1 Answers 1

1

According to Wikipedia you have an end-around carry when adding in 1's complement. That high order bit in your sum becomes the low order 1