Math vocabulary crossword

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Across
  1. 2. numbers, all numbers are
  2. 3. an algebraic expression of the sum of two terms
  3. 7. An algebraic expression consisting of three terms
  4. 8. to come close to
  5. 11. to estimate measure or note the similarity or dissimilarity between
  6. 13. number, a number without fractions; an integer
  7. 14. numbers, a number that can be made by dividing one integer by another
  8. 15. to roughly calculate a value
Down
  1. 1. numbers, a real number that cannot be written as a simple fraction
  2. 4. a plane figure with four equal sides
  3. 5. identical in form
  4. 6. square, the product of a rational number multiplied by itself
  5. 9. an algebraic expression consisting of one term
  6. 10. equal in value or amount
  7. 12. a whole number that is not a fraction