Posted by **a. chalk** on Tuesday, September 3, 2013 at 11:38pm.

Sally just got back from a vacation with her family. They had been driving for three days, travelling 8 1/2 hours each day. How many hours were they in the car altogether?

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**Matthew**, Tuesday, September 3, 2013 at 11:45pm
57.5 hr

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**Matthew**, Tuesday, September 3, 2013 at 11:45pm
I think

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**Ms. Sue**, Wednesday, September 4, 2013 at 1:24pm
Matthew is wrong.

8.5 * 3 = 25.5 hours

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**Anonymous**, Tuesday, October 14, 2014 at 8:04pm
explain in writing what barrow,trade,or regroup mean in subtration

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