Lesson 1 Binary and Denary convertions

What is a Number system?

• A game where you add up numbers

• A system of representing numbers

• A system involving hiding numbers

• An alphabetical system

What number system is Base 10?

• Denary

• Binary

• Hexadecimal

• Bitmap

What number system is Base 2?

• Denary

• Binary

• Hexadecimal

• Bitmap

Which of the following numbers is a Denary number?

• 00100000

• 26

• 4B

• AA

Which of the following numbers is a Binary number?

• 62

• 00100001

• 00102201

• 5F

What is the purpose of a number grid?

• It creates Bitmap images

• Calculates large numbers

• Allows you to convert from one number system to another

• Allows you to convert Bitmaps

Why would we add leading 0's?

• To confuse people

• Hide what the number is

• Make the number look more complicated

• To add bits to the binary number

What is the Denary number 6 in Binary

• 00000011

• 10001000

• 00000110

• 00000111

What is the Binary number 00001111 in Denary?

• 10

• 15

• 8

• 9

Challenge: What is the Binary number 11111111 in Denary?

• 255

• 125

• 1024

• 1000