Front End Estimations
Front end estimation generally produces a better estimate of sums or differences than rounding before adding or subtracting and are generally used in certain circumstances, like figuring “how much money” something could be, rather than to calculate the actual answer.
One example of WHEN you would use Front End Estimation is when SHOPPING for that DREAM gift that you want or want to purchase for someone else!
How to Estimate a sum by front end estimation:
Add the digits of the two highest place values. **
Insert zeros for the other place values.
To REMIND you about PLACE VALUES, View the PLACE VALUE DOCUMENT (a "pdf" file; Adobe Acrobat needed to view, Weblink listed below). You can just OPEN the files listed here (once you have DOWNLOADED to FREE ADOBE READER).
Place Values
View this SAMPLE and explanation in WORD:
Estimation Sample and Explanation
View this Worksheet for Estimation (It is a "pdf" file and you will need ADOBE ACROBAT to view):
Estimation Worksheet
*FOR ASSIGNMENT 2:
Check out the Weblink listed below under USEFUL LINKS.
Tell me - How would you solve this using FRONT END ESTIMATION? Email the Instructor your answer.
