CS Jeopardy: Number Systems & Binary Operations

Binary Basics

100

Convert 10 (base 10) to binary.

1010

200

Convert 1001 (base 2) to decimal.

9

300

Represent 25 (base 10) in binary.

11001

400

Convert 11111 (base 2) to decimal.

31

500

Represent 75 (base 10) in binary.

1001011

Hex Hacks

100

Convert 15 (base 10) to hexadecimal.

F

200

Convert 2F (base 16) to decimal.

47

300

Convert 28 (base 10) to hexadecimal.

1C

400

Convert B4 (base 16) to decimal.

180

500

Convert 255 (base 10) to hexadecimal.

FF

Bitwise Battles

100

1010 + 0101 = ?

1111

200

10000 – 111 = ?

1001

300

0101 × 10 = ?

1010

400

1100 ÷ 100 = ?

11

500

10101 + 11100 = ?

110001

Signed Systems

100

Using 8-bit sign-and-magnitude, convert −5 (base 10) to binary.

10000101

200

Using 8-bit sign-and-magnitude, convert −32 (base 10) to binary.

10100000

300

Using 8-bit two’s complement, convert 11110010 (base 2) to decimal.

−14

400

Using 8-bit two’s complement, convert 11011111 (base 2) to decimal.

−33

500

Convert 11111111 (base 2) to decimal.

255

ASCII Arcade

100

Convert ASCII code 01001000 to a character.

H

200

Convert ASCII code 01101001 to a character.

i

300

Write the ASCII binary code for capital letter “C”.

01000011

400

Write the ASCII binary code for capital letter “M”.

01001101

500

Convert ASCII code 01000101 to a character.

E