Mathematics crossword puzzle

12345678910111213141516171819
Across
  1. 1. numbers not evenly divisible by two
  2. 3. English measure of weight equal to 16 ounces
  3. 4. measure of time equal to 60 seconds
  4. 5. English measure of volume equal to two pints
  5. 6. numbers only evenly divisible by itself and one
  6. 7. two lines on a plane that intersect but not at a 90 degree angle
  7. 8. measure of time equal to ten years
  8. 9. answer from subtraction
  9. 12. answer from multiplication
  10. 13. English measure of weight equal to 2,000 pounds
  11. 14. two lines on a plane that never intersect
  12. 15. Metric measure of length equal to 100 centimeters
  13. 16. Metric measure of weight equal to 1,000 grams
  14. 18. measure of time equal to 365.25 days
  15. 19. English measure of length equal to 5,280 feet
Down
  1. 1. original Italian name for ounce
  2. 2. answer from addition
  3. 3. two lines on a plane that intersect at a 90 degree angle
  4. 5. answer from division
  5. 10. numbers evenly divisible by two
  6. 11. measure of time equal to 100 years
  7. 17. Metric measure of volume equal to 1,000 milliliters