Find the two's complement of 1. The binary number, 1011 2. The hexadecimal digit. "A" Given the Binary number, 10010110, determine the value if it is a 3. Unsigned number 4. Sign-Magnitude Number 5.2's Complement Signed Number 6. A "BCD" (8421) number Perform the arithmetic operation below, express the numbers and answer in decimal and binary and state if there is an overflow and WHY, if the numbers are: 7. Unsigned number 8.2's Complement Signed Number 1001 +0 111 1001 - 0 111