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    Perform addition and subtaction on binary numbers

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    9.
    Convert the following decimal numbers into 8?bit binary numbers as required for 2's complement math, and perform the indicated operations.

    Note:
    Remember that positive numbers are represented in signed-magnitude format in 2's complement math
    a)
    +39
    +19
    =

    b)
    +39
    -19
    =

    c)
    -39
    +19
    =.

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    Solution Preview

    Binary Representation of the numbers (n=8 bits)

    a) +39 = 00100111 ; +19=00010011 ;
    +39 + +19 =00100111+00010011 = 00111010 ...

    Solution Summary

    The solution provides help to perform addition and subtraction on binary numbers is achieved.

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