16. When multiplying in binary the decimal values 13 × 11, what is the third partial product?
(a) 100000
(b) 100001
(c) 0000
(d) 1011
17. Adding in binary, the decimal values 26 + 27 will produce a sum of:
(a) 111010
(b) 110110
(c) 110101
(d) 101011
18. How many basic binary subtraction operations are possible?
(a) 4
(b) 3
(c) 2
(d) 1
19. In binary number systems the sign of a number is indicated by _________.
(a) using a 0 (zero) bit in front of negative numbers
(b) inverting the bits if the number is negative
(c) including a sign bit along with the magnitude bits
(d) placing a negative sign in front of the number
20. A full adder adds ____.
(a) two 2-bit binary numbers
(b) two 4-bit binary numbers
(c) two single bits and one carry bit
(d) two 2-bit numbers and one carry bit
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