Binary Denary Hex

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

What is the denary number system?

• It counts the number of dens
• Our usual base 10 number system
• A special number system for computers
• Den Ary's number system

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

What is 12 in binary?
HINT: It has an 8 and a 4 in it!

• 12
• 11
• 1100
• 1011

What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10

• 1111
• 2020
• 146.6
• ?

A bit is 

• a numerical label assigned to each device.
• the smallest unit of data in a computer.
• a keyboarding term for typing.
• is a numeral system made up of 16 symbols.

What is a character?

• A letter
• A number
• A symbol
• All of these

Which of the following devices uses binary code?

• Calculator
• Train
• Typewriter
• Sewing Machine

Calculate the binary addition:
1001
1011
Use binary addition rules + whiteboards!

• 10100
• 010101
• 011100
• 01010011

Calculate the binary addition:
1111
1011
Use binary addition rules + whiteboards!

• 110101
• 11110
• 11011
• 11010