Binary & Hex Warm-Up

Which of these are binary digits?

• 0

• 1

• 2

• 3

Which of these are hexadecimal digits?

• F

• G

• 6

• 0

• H

What is the largest integer that can be represented using 7 bits?

• 127

• 128

• 125

• 999

What is the binary equivalent of the hexadecimal digit E?

• 1110

• 1111

• 0110

• 0111

Computers store all data using...

• Binary

• Hexadecimal

• Decimal

• Octal

Hexadecimal is used because...

• It takes up less space

• It is easier for computers to process

• It is easier for people to read

• It is quicker to write data in

What is the decimal equivalent of the binary number 00100111?

• 39

• 57

• 228

• 7

What is the largest 2-digit hexadecimal value?

• FF

• 99

• 9F

• F9

Convert the Hex number B9 to binary.

• 10111001
• 10111000
• 10111101
• 10101001

Convert the Hex number 1F to binary.

• 00111111
• 00001111
• 00010111
• 00011111