Math Vocab Puzzle

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Across
  1. 3. when the product of two numbers is 1
  2. 4. the center of the coordinate plane
  3. 5. when 3 or more numbers are together they can be added or multiplied in any order
  4. 7. distance around a figure
  5. 14. when two or more numbers are added or subtracted if they are the same they should equal the same thing
  6. 15. numbers that cant become a fraction
  7. 16. parts of an equation that are added or subtracted
Down
  1. 1. when two or more numbers are dived or multiplied they should equal the same thing
  2. 2. when adding or subtracting the order doesn't matter
  3. 6. result of numbers being added together
  4. 7. result of numbers being multiplied together
  5. 8. A number by itself with nor variables attached to it
  6. 9. a number that can be turned into a fraction Ex. 4 -> 4/1
  7. 10. the total amount of surface on a 2D object
  8. 11. number in front of a variable Ex. 5x
  9. 12. two numbers that show where something is plotted Ex. (8,9)
  10. 13. one of the four regions of the coordinate plane
  11. 14. when the sum of two numbers is 0