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Home > CCA > Chapter A > Lesson A.1.4 > Problem A-45

A-45.

Write and simplify the algebraic expression shown in each Expression Mat below.  

Shaded tile is plus 1. Tile is negative 1.

  1. A 2 region Expression Mat. The positive region has 2 positive, x tiles, and 3 negative unit tiles. The negative region has 1 positive, x-tile ,and 1 positive unit tile.

     

  1. A 2 region Expression Mat. The positive region has 1 positive, y tile, one negative, y-tile, 3 positive unit tiles, and 1 negative unit tile. The negative region has no tiles.

     

    Which tile pairs make zeros?

  1. A 2 region Expression Mat. The positive region has one negative, x-tile. The negative region has one positive, x-tile and 2 positive unit tiles.

     

Use the algebra tiles below to help you simplify.
Click the link at right for the full version of the eTool: A-45a HW eTool 

Use the algebra tiles below to help you simplify.
Click the link at right for the full version of the eTool: A-45b HW eTool (CPM)

Use the algebra tiles below to help you simplify.
Click the link at right for the full version of the eTool: A-45c HW eTool (CPM)

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