1.

Integer values are expressed by the length of 6 bits and by the two's complement method. What is the result of the next computation?

 001111 

x 001000

Note that the result is also held in 6 bits. What is an equivalent decimal number?

2.

Suppose that integer values are expressed in 6 bits using two's complement method for negative values. What is a result of adding

 111101 

 000111 

+ 100010 

Note that the result must be held in 6 bits too. What is a decimal value of the result?