NUMBER SYSTEM

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12345678910111213
Across
  1. 3. 90 DEGREE
  2. 4. LEFTOVER
  3. 6. NUMBER
  4. 9. ROOT OF CUBE
  5. 10. PRIME
  6. 12. FRACTION
  7. 13. SIMPLYFYING
Down
  1. 1. THEY ARE LAWS
  2. 2. RF
  3. 5. AFTER NO.
  4. 7. NOT A NUMBER
  5. 8. ENDING
  6. 11. A PROPERTY