1)What is 2s complement value of the decimal numbers

137

-67

2) Write the results of the following additions as both 8-bit binary and decimal numbers. For each part, use standard binary addition.

Add the signed magnitude representation of 7 to the signed magnitude representation

Add the 2s complement representation of 7 to the 2s complement representation of 7.

3)With out changing their values, convert the following 2s complement binary numbers into 8-bit 2s complement binary numbers.

a. 1010

1111111000

011001

01