Exertise No$.1$

Find the $9\text{'}$s Complement of $($a$)20,($b$)195,($c$)2345.$

Subtract $2$ from $7$ by osing the regulur subtraction and the $9\text{'}$s Complement.

Convert $($a$)7,($b$)19,($c$)324$ to their $10\text{'}$s complement form.

Subtract $4$ from $8$ by using the regular subtraction and the $10\text{'}$s Complement.

Convert the binary number ${11011\mathrm{.}1001}_2$ to decimal.

Perform the following binary arithmetic.

$($a$)1101+100+1001$

$($b$)100101-11111$

$($c$)1011110$

$($d$)1010+10$

Subtract $11111$ from $100101$ using $($a$)1$ is Complement $($b$)2\text{'}$s Complement

B$.$ Convert $27,125$ decimal to $($a$)$ Binary number, $($b$)$ Octal and $($c$)$ Hexadecimal

Conver ${7899}_{14}$ hexadecimal to $($a$)$ Decimal and $($b$)$ Binary number.