Mastering Binary and Hexadecimal Numbers

What is the denary equivalent of the binary number 1010?

• 10

• 2

• 11

• 5

Convert the denary number 15 to binary.

• 1111

• 1110

• 1001

• 1010

What is the binary representation of the denary number 8?

• 1001

• 1000

• 0110

• 0001

Convert the binary number 1101 to hexadecimal.

• B

• D

• E

• C

What is the hexadecimal equivalent of the binary number 11111111?

• 00

• FF00

• 7F

• FF

Explain the binary number system in your own words.

• The binary number system uses two digits, 0 and 1, to represent values.

• The binary number system represents values using letters A and B.

• The binary number system is based on three digits: 0, 1, and 2.

• The binary number system uses ten digits, 0 to 9, to represent values.

What are two applications of binary numbers in technology?

• Image processing in graphics software.

• Data encryption in secure communications.

• 1. Data representation in computers. 2. Error detection and correction in communication systems.

• Audio compression in streaming services.

Convert the hexadecimal number 1A to binary.

• 00110100

• 00011010

• 00011001

• 00010110

What is the denary equivalent of the binary number 1110?

• 14

• 16

• 10

• 12

Convert the denary number 23 to binary.

• 10111

• 11100

• 10110

• 11001