15
2-66. How many binary digits are required to
represent the decimal number 243 in
BCD?
1.
12
2.
8
3.
3
4.
4
IN ANSWERING QUESTIONS 2-67 AND
2-68, PERFORM THE INDICATED
OPERATION.
2-67. Convert 38910 to BCD.
1.
0000 1110 0101BCD
2.
0011 0001 1101BCD
3.
0011 1000 1001BCD
4.
0011 0100 0101BCD
2-68. Convert 010001010111BCD to decimal.
1.
89710
2.
85710
3.
49710
4.
45710
2-69. Which of the following numbers has the
highest decimal value?
1.
100110012
2.
111000012
3.
1001 1001BCD
4.
1000 0110BCD
2-70. Which of the following numbers is NOT a
valid BCD number?
1.
0110
2.
1001
3.
1000
4.
1010
IN ANSWERING QUESTIONS 2-71
THROUGH 2-75, PERFORM THE
INDICATED OPERATION.
2-71. Add:
0101BCD
0010BCD
1.
0111BCD
2.
1001BCD
3.
1010BCD
4.
1000BCD
2-72. Add:
1001BCD
0111BCD
1.
0001 0000BCD
2.
0001 0110BCD
3.
0111 0110BCD
4.
0001 1111BCD
2-73. Add:
1001BCD
+100BCD
1.
1101BCD
2.
0011BCD
3.
0001 0011BCD
4.
0001 0110BCD
2-74. Add:
0010 0011BCD
+ 0001 1000BCD
1.
0011 1011BCD
2.
0011 0001BCD
3.
0100 1011BCD
4.
0100 0001BCD
