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I am doing binary arithmetic for the first time and I want to know how to carry over 1+1+1+1 in binary multiplication $$\begin{align} &1101000\\ &0101100\\ &1011000\\ &0001000\\ \end{align}$$

now the fourth column has 1+1+1+1=100, How can I carry it to the next column or any other such number 5=101 thanks.

Onix
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    sorry, thanks for notifying hawkeye :) – Onix May 10 '16 at 18:06
  • If the sum is, for exmplae, $100$, you notate $0$ and keep $10$ in mind. – Peter May 10 '16 at 18:06
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    Have you tried this in base ten? Adding so many numbers that the sum in one column exceeds $99$? I would think it would be more intuitive to see what to do in that case. – Arthur May 10 '16 at 18:18
  • yeah interesting but it takes at least 12 step multiplication and I want to go to bathroom nevermind @Arthur – Onix May 10 '16 at 18:22

1 Answers1

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$1+1+1+1=100$, so it carries like this:

     10  
    1101000  
    0101100  
    1011000  
    0001000  
    -------  
       0100

Here I’ve shown only what you have after dealing with the four leftmost columns.

Brian M. Scott
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