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Q&A #1154

Teachers' Lounge Discussion: Front End Estimation

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From: kenneth 
To: Teacher2Teacher Public Discussion
Date: 2008102010:55:51
Subject: Re: Re: front end estimation


i deffinitly agree. front end estimation is much more than adding the
first digits of two or more numbers. there is another step. 

 285   90 
+134   30
 300 + 120 = 420

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