Algebra terms

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Across
  1. 3. a property where numbers can be added or multiplied in any order
  2. 8. the vertical and horizontal line on a coordinate plane
  3. 13. the distance a number is from zero on a number line
  4. 14. the real numbers and the imaginary numbers
  5. 15. the number of times a number will multiply by itself
  6. 16. The opposite of a square
  7. 18. the opposite of a number
  8. 19. a formula used for finding the sides of a triangle
Down
  1. 1. An equation with set numbers and variables
  2. 2. an expression using different numbers, operations, and variables
  3. 4. the order of solving a complex equation
  4. 5. a number assigned to a variable
  5. 6. A number times itself twice
  6. 7. all whole numbers and zero
  7. 9. the multiplicative inverse of a number
  8. 10. Solving math using formulas
  9. 11. a letter that can be assigned any value
  10. 12. an exponent that makes the base find an expected answer
  11. 17. an equation used to solve any quadratic formula
  12. 20. any number that can be expressed as a fraction