Binary, Denary and Hexadecimal

What are the only two numbers you can use in binary?

• 0 and 1
• 1 and 2
• 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 1, 2, 4, 8, 16

Tags

CCSS.4.NBT.A.2

If 1 and 0 mean on and off. Is the number 1 on or off?

• ON
• OFF

How many bits make a byte?

• 2

• 4

• 8

• 16

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

Convert 65 to binary

• 01100001
• 00100001
• 01000001
• 00100101

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100

Convert 254 to binary

• 11110000
• 11111100
• 11111111
• 11111110

Convert 37 to binary

• 00100101
• 00100011
• 00100111
• 01000101

Convert 11111111 to decimal

• 255
• 245
• 235
• 225

Convert 00100100 to decimal

• 26
• 36
• 46
• 56