[AP CSP] Binary and Hexadecimal Numbers

Which of these is the correct sequence for the place values for binary numbers?

• 1, 2, 4, 8, 16, 32, 64, 128
• 1, 2, 4, 6, 8, 10, 12, 14, 16
• 1, 2, 3, 4, 5, 6, 7, 8
• 0, 1

Tags

CCSS.5.NBT.A.1

Convert 11111111 to decimal

• 255
• 245
• 235
• 225

Convert 00100100 to decimal

• 26
• 36
• 46
• 56

Convert 01000100 to decimal

• 58
• 68
• 78
• 88

Convert 11001100 to decimal

• 224
• 134
• 104
• 204

What is the main function of binary code?

• Turning switches on and off
• Allowing computers to represent and store data
• Providing a gateway into higher mathematics
• Allowing computers to interact with humans

16 to binary

• 10000

• 1111

• 1000

• 111

28 to binary

• 11100

• 11001

• 10011

• 00111

64 to binary

• 1000 0000

• 0100 0000

• 0010 0000

• 0001 0000

Decimal _______ = Binary 10101

• 22

• 34

• 21

• 18