Teacher2Teacher 
Q&A #1154 
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From: Ali Elghoul <elghoula_mathedu@yahoo.com> To: Teacher2Teacher Public Discussion Date: 2004101912:58:18 Subject: front end estimation My name is Ali Elghoul, and I am a Secondary Math Education Major at Henry Ford Community College in Dearborn, Michigan. It has been almost 12 years since I dealt with frontend estimation, but, boy, I remember it as if it was yesterday. Frontend estimation consists of working with the frontend digits of a number. Here is an example of estimating a sum of two addends using frontend estimation. Estimate 285 + 134 using frontend estimation. Add the frontend digits of 285 and 134. Change the remaining digits to 0's. Add 200 + 100 = 300 So, 300 is the frontend estimation of 285 + 134
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