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Suppose one person in your team has two -tiles, three -tiles, and one unit tile on his desk and another person has one -tile, five -tiles, and eight unit tiles on her desk. You decide to put all of the tiles together on one desk. What is the name for this new group of tiles?  

Refer back to problem 2-6 for a strategy to use on this problem.

Use the tiles in the eTool below to solve the problem.
Click the link to the right to view the full version. 2-7 HW eTool