Algebraic expressions Puzzle

12345678910
Across
  1. 3. An expression with many terms
  2. 4. A polynomial with three terms
  3. 7. A number on its own that does not change
  4. 8. Each part of an algebraic expression separated by a plus or minus sign
  5. 9. A symbol (usually a letter) used to represent an unknown number
  6. 10. A polynomial with only one term
Down
  1. 1. The numerical factor attached to a variable (e.g., the 4 in 4x)
  2. 2. A combination of numbers, variables, and operations
  3. 5. Terms that have the same variables raised to the same exponents
  4. 6. A polynomial with two terms