Algebra

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Across
  1. 2. when you multiply the same number to both sides of the equation
  2. 7. Multiplication
  3. 8. (X, Y)
  4. 9. when you add or multiply 2 numbers; order doesn't matter
  5. 10. when 3 or more numbers are added or multiplied; order doesn't matter
  6. 13. each of 4 quarters of a circle
  7. 15. when you add or subtract the same number to both sides of the equation
  8. 16. Addition
  9. 17. the total space taken up by a flat surface/shape
Down
  1. 1. number by itself (no variable)
  2. 3. a number that can not be written as a fraction or doesn't repeat
  3. 4. when the sum of 2 numbers is 0
  4. 5. when the product of 2 numbers is 1
  5. 6. the number in front of the variable
  6. 11. the outer boundary of a figure
  7. 12. a number that can be written as a fraction or repeats
  8. 14. parts of an equation that are added & subtracted