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Arithmetic Operations Multiple Questions and Answers.




26. What are the two types of basic adder circuits?
A. sum and carry
B. half-adder and full-adder
C. asynchronous and synchronous
D. one- and two's-complement

27. If B[7..0] = 10100101, what is the value of B[6..2]?
A. 10100
B. 01001
C. 10010
D. 00101

28. How many inputs must a full-adder have?
A. 4
B. 2
C. 5
D. 3

29.Solve this binary problem: 01110010 – 01001000 =
A. 00011010
B. 00101010
C. 01110010
D. 00111100

30.What distinguishes the look-ahead-carry adder?
A. It is slower than the ripple-carry adder.
B. It is easier to implement logically than a full adder.
C. It is faster than a ripple-carry adder.
D. It requires advance knowledge of the final answer.

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