Quiz for 8th grade

What type of numbering system is ordinarily used by people?

• Decimal

• Binary

• Denary

Binary is made up of which numbers 

• 3 and 4.
• 2 and 3.
• 1 and 2.
• 0 and 1.

Which number represents that the circuit is "off" or closed?

• zero

• two

• ten

• one

what kind of system is used by computers?

• decimal

• binary

• solar

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

• 12
• 11
• 1100
• 1011

Convert 65 to binary

• 01100001
• 00100001
• 01000001
• 00100101

Convert 37 to binary

• 00100101
• 00100011
• 00100111
• 01000101

Convert 00010001 to decimal

• 17
• 27
• 37
• 47

What is E in denary

• 10

• 12

• 14

• 16

Which of these are hexadecimal digits?

• F

• G

• 6

• 0

• H