3
1-21. The result of subtraction is known as the
1. addend
2. quotient
3. difference
4. subtrahend
1-22. What are the (a) radix and (b) the symbols
used in the binary number system?
1. (a) 1 (b) 0, 1
2. (a) 2 (b) 1, 0
3. (a) 3 (b) 0, 1, 2
4. (a) 0 (b) 1, 2
1-23. Positional notation for the binary system
is based on powers of
1.
1
2.
2
3.
3
4.
0
1-24. What is the decimal equivalent of 23?
1. 6
2. 2
3. 8
4.
10
1-25. The decimal number 1 is equal to what
power of two?
1.
21
2.
22
3.
23
4.
20
1-26. Which of the following powers of two
indicates a fraction?
1.
21
2.
20
3.
2
-2
4.
22
1-27. Which digit is the MSD in the binary
number 1011001?
1. The 0 farthest to the left
2. The 1 farthest to the left
3. The 0 farthest to the right
4. The 1 farthest to the right
1-28. Which of the following combinations of
binary addition is INCORRECT?
1. 1 + 1 = 1 with a carry
2. 1 + 0 = 1
3. 0 + 0 = 0
4. 0 + 1 = 1
IN ANSWERING QUESTIONS 1-29
THROUGH 1-33, PERFORM THE
INDICATED OPERATION.
1-29. Add:
100102
+ 10102
1.
100002
2.
111002
3.
101012
4.
110102
1-30. Add:
111012
+ 010012
1. 111112
2.
1001102
3.
1110102
4.
1000002
