basic math symbol

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Across
  1. 2. division/ fraction
  2. 3. =
  3. 6. 3√a
  4. 7. multiplication
  5. 8. √a
  6. 9. calculate expression inside first
Down
  1. 1. modulo
  2. 3. power
  3. 4. strict inequality
  4. 5. not equal sign