Perform the following calculations (7-10, 10 x 4 = 40 points) 7. Add the following unsigned binary numbers: 01100101 + 01110011 8. Subtract the following signed binary numbers as shown using 2's complement method (recall computers do not subtract) 01110001 00110011 9. Perform binary multiplication using the unsigned binary numbers 1101 X 111 10. Perform binary division using the unsigned binary numbers 1111 / 11 =