1. Express the following expressions in 4-bit sign-magnitude format and then calculate the answers. Indicate if overflow.

5 + 2 = 0101 + 0011=	4 + 4	-5 + -2	-4 + -4
5 + -2	4 + -4	-5 + 2	-1 + 1
5 2	4 - 4	-1 - -1	0 - 1

3. Demote the following 8-bit unsigned integers to 4-bit representation. Indicate if chopping is not possible without losing accuracy.

00000001

10000001

00010001

10001010

10000111

Signed Integer Twos Complement Representation

5. What is the largest number in 8-bit Twos compliment integer representation?

7. What is the smallest number in 8-bit Twos compliment integer representation?