Number system words

12345678
Across
  1. 4. Commas are put based on
  2. 7. Based on position
Down
  1. 1. value of the digit
  2. 2. I am fourth in place value
  3. 3. Three hundred
  4. 5. Thirty five
  5. 6. I am ten lakh in Indian system
  6. 8. I come after 10 lakh