Posted by **Shion** on Friday, September 23, 2011 at 6:11pm.

How can you use rounding when estimating

- Math -
**Ms. Sue**, Friday, September 23, 2011 at 6:34pm
It's easier to use a rounded number to do estimations.

For instance, if gas is $3.99 a gallon, most of us automatically round that to 4.00 to figure out how much we'll need to spend to fill up the tank.

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