Basic Math Symbols

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Across
  1. 3. ROOT √a
  2. 5. EQUAL SIGN ≠
  3. 7. EQUAL ≈
  4. 9. MINUS ±
Down
  1. 1. SLASH /
  2. 2. LINE —
  3. 4. SIGN =
  4. 6. THAN >
  5. 8. THAN <