Math Vocabulary Puzzle

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Across
  1. 2. A number that never changes (the numbers that are not attached to the variable)
  2. 3. The terms that have the same variables. Constants are also like terms
  3. 5. a number without fractions; an integer.
  4. 7. A letter or symbol that stands for an unknown number
  5. 8. a whole number; a number that is not a fraction.
  6. 9. The number in front of the variable
Down
  1. 1. all the positive integers from 1 till infinity
  2. 4. any number that can be placed on a number line or expressed as in infinite decimal expansion
  3. 6. any real number that cannot be expressed as the quotient of two integers