Number system

Number system

Q1.Complete the following tables a b a-b=c a b a-b=c 0 00 0 00 1 01 1 10 1 01 0 1 -1 1 12 0 11

Q2. Convert each of the following decimal numbers into binary. 1. 43210 2. 30910 23 1 21 1 2 432 2 30910 2 216 0 2 15455 0 0 2 103 0 2 7727 1 2 51 1 2 3863 1 Answer=01110010000110 2 25 1 2 1936 1 2 12 1 2 968 0 26 0 2 484 0 23 0 2 242 0 21 1 2 121 0 2 60 1 0 2 30 0 Answer =010011100 2 15 0 27 1

. Q3. Convert each of the following binary numbers into decimal. 1. 110102 2. 10001112 11010 1000111 answer 0*20=0 1*20=2 1*21=3 0*22=2 1*21=2 1*23=5 1*24=6 1*22=4 0*23=3 16 0*24=4 0*25=5 1*26=8

Q4. Add the following binary numbers. 1. 1000000 +11101 2. 101010 +110110 • . 1000000 2. 101010 • +110110 +111011 • ________ ________ 10110110 1000101

Q5. Subtract the following binary 2.-110100-111011 numbers. 110100 • 1. 1100001- 110000 111011 000111 1100001 110000 110001