PI Crossword Puzzle

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Across
  1. 3. 1st,2nd,3rd,4th
  2. 4. 1st,2nd,3rd,4th,5th,6th,7th,8th,9th
  3. 6. 1st,2nd,3rd,4th,5th
  4. 7. 1st,2nd,3rd,4th,5th,6th,7th,8th,9th,10th
Down
  1. 1. 1st,2nd,3rd,4th,5th,6th,7th
  2. 2. 1st,2nd,3rd,4th,5th,6th,7th,8th
  3. 3. first No. decimal 2nd No.
  4. 5. 1st,2nd,3rd,4th,5th,6th
  5. 6. 1st,dot,2nd,3rd