1. [3 marks] Represent the decimal numbers -4, -3, -2, -1, 0, 1, 2, and 3 to binary numbers using 2's complement.
2. [5 marks] Given the 4 bits 2's complement binary numbers 1110, 0010, 0000, 1111, and 1000, find the corresponding decimal integer number.
3. [3 marks] If (0101)2 + (27): = (p)10. Then p = ?
4. [5 marks] Convert (3.1)5 to an octal number.
5. [4 marks] Perform the subtraction: (621)8 - (164)8