每次碰到數字都不知該怎麼念嗎?   還在數 "個十百千萬..." 嗎?

   數字的標示通常會每三位一撇   以方便唸出來或寫成文字 

   從右到左   第一撇的左邊那一位數是「千」(thousand)
   第二撇的左邊那一位數是「百萬」(million)
   第三撇的左邊那一位數是「十億」(billion) 
   

  1,000  one thousand, a thousand
  1,500  one thousand five hundred, fifteen hundred
  10,000  ten thousand
  100,000  one hundred thousand, a hundred thousand
  235,000  two hundred thirty-five thousand
  1,000,000  one million, a million
  2,500,000  two million five hundred thousand
  46,000,000  forty-six million
  345,000,000  three hundred forty-five million
  1,000,000,000  one billion, a billion


  Fractions
 

  1/2  a/one half
  1/3  a/one third
  1/4  a/one quarter
  1/12  one twelfth
  1/15  one fifteenth
  2/3  two thirds
  3/4  three quarters
  9/10  nine tenths
   two and a half


 
Decimals  
 
  35.6

 thirty-five point six

  2.143  two point one four three
  0.68  (zero) point six eight


  Mathematical expressions  

  +  plus
    minus
  x  times/multiplied by
  ÷  divided by
  =  equals/is
  %  per cent/percent
  52  five squared
  23  two cubed



  Temperature  
 

  35°C  35 degrees Celsius
  78°F  78 degrees Fahrenheit


   Prices
  

    $1.20       one dollar and twenty cents 
   a dollar twenty      
    $3.50    three dollars and fifty cents
   three fifty  
    $28.62    twenty-eight dollars and sixty-two cents 
   twenty-eight sixty-two   
    $147.30    a hundred forty-seven dollars and thirty cents
   one forty-seven thirty
   

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