Number Theory Crossword Puzzle

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12345678
Across
  1. 2. Attic Greek 112
  2. 4. Ionic Greek 57
  3. 5. Roman 24
  4. 7. Tally 71
  5. 8. Babylonian
Down
  1. 1. Chinese
  2. 2. Base 2
  3. 3. Egyptian 22
  4. 6. Mayan 400
  5. 8. Modular 8 mod 5