Binary recap

The Binary number system is a counting system made up of (a)   , ​ (b)   . We call it a ​ (c)   . Computers can only understand binary because they are made of ​ (d)   which are switches that can only be ​ (e)   .

• 2 digits
• 0 and 1
• base 2 number system
• transistors
• on or off

Put these binary values into the right order.

• 1

• 4

• 8

• 16

• 2

What is the binary number 101 in decimal?

• 5

• 6

• 7

• 8

What is the binary number 1000 in decimal?

• 8

• 7

• 6

• 9

what is the binary number 11001 in decimal?

• 36

• 35

• 37

• 38

What is the decimal number 4 in binary?

• 100

• 10

• 01

• 001

What is the decimal number 5 in binary?

• 101

• 110

• 011

• 100

What is the decimal number 23 in binary?

• 10111

• 110111

• 1011

What is the binary number 56 in decimal?

• 111000

• 11000

• 1111000