Supreme Mathematics Crossword Puzzle

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Across
  1. 4. To know
  2. 6. To be complete
  3. 9. One's way of life
  4. 10. The original Blackman
Down
  1. 1. Wise words, ways and actions
  2. 2. The truth
  3. 3. To take away
  4. 5. To see clearly
  5. 6. To add on
  6. 7. To be equal
  7. 8. When applied to 40 or more
  8. 9. Person, place or thing