Year 8: Data Representation Spring 1 Homework 2

What is the decimal value of the binary number 1010?

• 10

• 15

• 12

• 5

Convert the binary number 1101 to hexadecimal.

• 7A

• 2B

• 4E

• 3D

What is the binary representation of the decimal number 25?

• 11001

• 10011

• 10101

• 11100

Convert the hexadecimal number 2F to binary.

• 00101111

• 00101011

• 11001111

• 10101111

How many bits are in a nibble?

• 6

• 8

• 10

• 4

Convert the binary number 111001 to hexadecimal.

• 0x3C

• 0x3E

• 0x39

• 0x3A

What is the decimal value of the binary number 1111?

• 15

• 14

• 10

• 12

Convert the hexadecimal number A5 to binary.

• 11001010

• 10101010

• 10100101

• 11110000

What is the hexadecimal representation of the decimal number 42?

• 2A

• 41

• 3A

• 2B

Convert the binary number 10011011 to hexadecimal.

• 7D

• 9A

• 9B

• 8C