Binary

Denary is numbers humans use in every day life

• True 
• False

Denary uses 11 different numbers

• True
• False

Binary uses electrical signals

• True
• False

Binary uses 1’s & 0’s to represent data

• True
• False

What is 12 in binary?

• 0010
• 1010
• 1100
• 1111

What is 3 in binary?

• 0100
• 0001
• 0101
• 0011

Tags

CCSS.2.NBT.A.3

Convert 128 to binary

• 10000000
• 01111110
• 10000001
• 11001100

Convert 11111111 to decimal

• 255
• 245
• 235
• 225

Which of these are the correct place values for binary?

• 128,64,32,16,8,4,2,1

• 128, 68,34,12,6,4,2,1

• 1,0

• 0,1

What is the point of binary?

• It represents how computers interpret electrical signals
• Because we like to make you do extra maths ;-D
• For the lulz
• Because it describes star systems