Number Systems & Binary Maths

A Base 2 number system is commonly known as

• Hexadecimal

• Binary

• Boolean

• Denary

In computers the binary numbers represent

• Nybles

• Bytes

• Bits

• gates

Binary numbers can contain

• 1 and 0

• 1 and 2

• 2 and 0

• 0 or 1 and 2

What is the binary number for decimal 10

• 00010100

• 00008020

• 00001010

• 00000101

Convert the binary number 00100110 to decimal

• 36

• 37

• 38

• 39

Add the binary numbers 00001010 and 00001010

• 00011000

• 00100100

• 00010100

• 00001100

00101000 + 00010010 = decimal ?

• 28

• 38

• 48

• 58

When multiplying binary the bits are shifted

• to the left

• and carry 1

• to the right

• up and down

when multiplying a binary number by 2 the bits are shifted

• one place to the right

• one place to the left

• two places to the right

• two places to the left

when mulitplying a binary number by 8 the bits are shifted

• 8 places left

• 3 places left

• 4 places right

• 8 places right