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Home > INT1 > Chapter A > Lesson A.1.2 > Problem A-20

A-20.

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.

    Use the algebra tiles below to help you simplify.

    Click the link at right for the full version of the eTool: Int1 A-20a HW eTool.

  2. 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 tiles pairs make zeroes?

    Use the algebra tiles below to help you simplify.

    Click the link at right for the full version of the eTool: Int1 A-20b HW eTool.

  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: Int1 A-20c HW eTool.

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