Algebraic Expressions with Algebra Tiles

Look at the model. Which of the following algebraic expressions could it represent? Green represents x and yellows represent 1.

• 2x + 1 + 5 + 2x

• 2 + 1x + 4x + 2

• 2 + 1 + 4 + 2

• 2 + x + 4 + 2x

Green tiles represent x and yellow tiles represent 1. Simplify.

• 10 + 6x

• 6x + 10x

• 16x

• 8x + 3

Look at the model. Simplify the expression it represents by adding like terms. Green represents x and yellows represent 1.

• 6x + 3x

• 3x + 5

• 3x + 6

• 2x + 1

What do these tiles represent?

• 5x

• -5x

• -5

• 5

What do these tiles represent?

• -2x - 3

• -2x + 3

• 2x + 3

• 2x - 3

Which expression is represented in the algebra tiles?

• 6

• -6

• 6x

• 3x + 4x

Which expression is being modeled?

• x + 6

• 6x - 1

• 6x + 1

• -x + 6

Which expression is being modeled?

• -4x - 1

• -4x + 1

• 4x + 1

• x - 4

Which expression is being modeled?

• -2x - 6

• 2x + 6

• 2x - 6

• -2x + 6

Which expression is being modeled, after making zero pairs?

• 4x - 2

• 4x + 2

• 2x -2

• 2x + 2