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Q&A #679

Teachers' Lounge Discussion: Number placement

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From: Loyd <loydlin@aol.com>
To: Teacher2Teacher Public Discussion
Date: 2002081716:24:21
Subject: Re: Number placement

On 2002081713:23:02, Theodore Ross wrote:
>	
>1
>10
>100
>1000
>10,000
>100,000
>what is after 100 thousands 
> 

In the United States it is as follows.  
1                   one
10                  ten
100                 hundred

1.000               one thousand
10,000              ten thousand
100,000             hundred thousand

1,000,000           One million
10,000,000          ten million
100,000,000         Hundred million

1,000,000,000       One billion
10,000,000,000      ten billion
100,000,000,000     hundred billion

1,000,000,000,000   one trillion etc.

The pattern one, ten, hundred keeps repeating and commas represent
thousands, millions, billions, trillions, quadrillion etc.  

Thus if you have 9,999,999,999,999 you read each set of three digits
separately.  When you come to a comma, you say, "trillion, billion,
million, thousand.

Thus the number is 9 trillion, nine hundred ninety-nine billion, nine
hundred ninety-nine million, nine hundred ninety-nine thousand, nine
hundred ninety-nine.  You don't say and until you come to the decimal.


Trillion has 4 commas, billion has three, million has two and
thousands has one.  Some countries have variations on the names such
as millard, I believe.  


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