Mathematical word puzzles

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Across
  1. 1. any of numbers that form a product when multiplied together
  2. 3. a quantity abstained by multiplication
  3. 6. a thing you can use for two people
  4. 10. the thing we use in the beginning of the year
  5. 11. the quotient of two rational numbers
  6. 12. The thing you have to do to get 2?3=5
  7. 14. the product of three equal terms
  8. 15. made less in size or amount or degree
  9. 17. the opposite of 2x2=4 total first
  10. 18. a polygon with for equal sides and four right angles
  11. 19. the whole amount
Down
  1. 2. a app we use to do are math problems
  2. 4. the thing when you do 5?2=3
  3. 5. a mathematical statement that two expressions are the same
  4. 7. around the middle of a scale of evaluation
  5. 8. the balance of money received
  6. 9. an amount that can grow
  7. 10. a number that identifies a position relative to an axis
  8. 13. a thing that you have do 2?2=4
  9. 16. separate into parts or portions