Math Midterm Crossword Puzzle

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Across
  1. 2. consists of numbers, operations, and variables
  2. 5. the set of numbers and their opposites
  3. 7. a term that has no variable
  4. 9. consists of numbers and operations
  5. 10. the product of any number and non-zero whole number
Down
  1. 1. a number that is a factor of two or more whole number
  2. 3. a number whose only factor are 1 and the number
  3. 4. a number's distance from zero on the number line
  4. 6. the numerical factor of a term
  5. 8. a mathematical sentence formed by two expressions with an equal sign