One Digit 100

A Maths Starter of The Day

How many ways can you write an expression for 100 which only uses the same digit repeated and any operations?

 

 

 

 

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Keywords: Starter | Arithmetic

  • Miss Llewellyn’s set one, Rawthorpe
  • Thursday, October 04, 2007
  • "(5x5)=25 25-5=20 20x5=100 so (5x5-5)x5"
  • OpenGate , Czech Republic
  • Thursday, October 11, 2007
  • "Generally: (AAA-AA)/A, you can choose any number between 1-9 instead of A"
  • Hannah Loyden (10-3), St John Bosco Liverpool
  • Tuesday, September 29, 2009
  • "Suggestion is 55 + 55 - 5 - 5 = 100."
  • 10-3, WHGS Manchester
  • Wednesday, October 07, 2009
  • "Denny(11 x 11) - 11 - 11 + 1 = 100
    Musa (ish) 1 + 1 + 1 etc = 100
    Sammi 55 + 55 - 5 - 5
    Dom 22 x 22 -222 - 222 + 22 + 22 + 22 - 2 - 2 - 2."

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This starter has scored a mean of 2.7 out of 5 based on 16 votes.
 

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