Algebra Vocabulary

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Across
  1. 2. The space inside a 2 dimensional shape.
  2. 5. The center of the coordinate plane.
  3. 7. A shape with four identical sides.
  4. 11. The distance around a figure.
  5. 12. The x-axis.
  6. 13. Numbers or variables separated by + and -.
  7. 14. The y-axis.
  8. 15. The number of tiles on figure 0.
Down
  1. 1. The coordinate plane is divided in 4.
  2. 3. Four squared.
  3. 4. The algebra tiles that are shaded.
  4. 6. To reduce or make an expression shorter.
  5. 8. Two cubed.
  6. 9. The unshaded algebra tiles.
  7. 10. Letters that represent numbers.