Mastering Number Base Operations

Convert the denary number 25 to binary.

• 11001

• 11010

• 10101

• 11100

What is the binary equivalent of the denary number 100?

• 110010

• 1100100

• 10100

• 1000

Convert the denary number 255 to hexadecimal.

• F1

• FF

• F0

• FE

What is the hexadecimal representation of the denary number 16?

• 20

• 1A

• 10

• F

Convert the binary number 1010 to denary.

• 8

• 12

• 10

• 5

What is the denary equivalent of the binary number 11101?

• 27

• 29

• 30

• 28

Convert the denary number 64 to octal.

• 100

• 70

• 80

• 60

What is the octal representation of the denary number 8?

• 10

• 7

• 11

• 12

Add the octal numbers 17 and 24.

• 43

• 41

• 32

• 25

What is the sum of the octal numbers 12 and 5?

• 17

• 15

• 10

• 20