1. Add the following BCD numbers.
0110 0111 1001 0101 1000 1000
2. Add the following hexadecimal numbers.
3C 14 3B +25 +28 +DC
3. Solve this BCD problem: 0100 + 0110 =
4. What are constants in VHDL code?
5. The 2's-complement system is to be used to add the signed binary numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.
6. The most commonly used system for representing signed binary numbers is the:
7. What is the major difference between half-adders and full-adders?
8. The decimal value for E16 is:
9. Fast-look-ahead carry circuits found in most 4-bit full-adder circuits:
10. Add the following hex numbers: 011016 + 1001016
11. The binary subtraction 0 – 0 =
12. Convert each of the decimal numbers to 8-bit two's-complement form and then perform subtraction by taking the two's-complement and adding.
13. Adding in binary, a decimal 26 + 27 will produce a sum of:
14. Convert each of the following signed binary numbers (two's-complement) to a signed decimal number.
00000101 11111100 11111000
15. How many basic binary subtraction operations are possible?
16. If [A] = 1011 1010, [B] = 0011 0110, and [C] = [A] • [B], what is [C 4..2] in decimal?
17. Using 4-bit adders to create a 1See Section 6-bit adder:
18. When performing subtraction by addition in the 2's-complement system:
19. The two's-complement system is to be used to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum.
20. When 1100010 is divided by 0101, what is the decimal remainder?
21. One way to make a four-bit adder perform subtraction is by:
22. What is the most important operation in binary-coded decimal (BCD) arithmetic?
23. The range of positive numbers when using an eight-bit two's-complement system is:
24. What are the two types of basic adder circuits?
25. The truth table for a full adder is shown below. What are the values of X, Y, and Z?