Posted by **stephanie** on Wednesday, August 24, 2011 at 7:10am.

estimate using compatible numbers or

other methods. estimate by rounding

123,786-82,004=

- math -
**drwls**, Wednesday, August 24, 2011 at 7:47am
The "rounded" answer can be estimated as

124,000 - 82,000 = (124-82)*1000 = 42,000

to the nearest thousand , or about 2%

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