Question: a. How do you do subtraction with twos complement? (In words, not a formula.) Using 4-bit twos complement numbers for question b & c, show

a. How do you do subtraction with twos complement? (In words, not a formula.)

Using 4-bit twos complement numbers for question b & c, show how to represent the following operations and their results. If you cannot, explain why.

b. 4 - 7

c. 11 - 3

d. Let the decimal numbers A=54, B= -77, give their 8-bit 2s complement representation

e. Compute A-B in 2s complement and explain the steps of your solution. If there is any problem in finding the solution, explain as well.

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