Subtraction in Number Bases

110 100₂ - 11 011₂ =

• 10 000₂
• 10 001₂
• 11 001₂
• 11 011₂

100100₂ − 10100₂ =

• 100001
• 100000
• 10100
• 10000

• Yes

• No

• I'm not sure

When subtracting, we add the base number to the digit we are trying to help.

• True

• False

84₉ - 77_{9 =} 6₉

• True

• False

Which is easier for you?

(Addition, Subtraction or Multiplication)

Numbers in different bases cannot be added or subtracted.

• I agree!

• I disagree!

Find the difference between these base 8 numbers.

4726₈ - 1062₈