Math Crossword Puzzel

12345678910
Across
  1. 2. measure of all the sides of a shape
  2. 4. shape with zero sides
  3. 6. What it is called when we add ?
  4. 8. The number that comes before eight
  5. 10. shape with three sides
Down
  1. 1. answer to an addition equation
  2. 2. answer to a multiplication equation
  3. 3. shape with three sides
  4. 5. The number that comes after eight.
  5. 7. answer to a subtraction equation
  6. 9. LxW