a. Obtain the 9's complement of the following eight-digit decimal numbers: A=90009951; and B=00980100 b. Obtain the 10's complement of the following eight-digit decimal numbers: A=90009951; and B-00980100 c. Suppose that we use the 10's complement of X to represent -X. Show that A-B can be performed as A+ (-B); i.e., by taking the 10's complement of B and adding it to A (and ignoring the carry out of the 8-digit decimal values).

Perform subtraction on the given unsigned number using the 10’s complement of the subtrahend. Where the result should be negative, find its 10’s complement and affix a minus sign. Verify your answers. 1,631−745.

Do question 6

2c. 11101 * 11101 is incorrect because the professor told me:  In 2’s complement you must sign extend. I have to do it again. Please you can give the correct answer

Which means the sum of w and 3.4 is greater than or equal to 10.5