Math crossword puzzle

Edit Answers
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Across
  1. 3. 7=4+3
  2. 5. point-2.45
  3. 11. sin (0.01)~0.01,
  4. 12. 4+3=7
  5. 13. 3•3=9
Down
  1. 1. √5
  2. 2. or -2
  3. 4. 4 is not equal to 3
  4. 6. 3>2
  5. 7. 7mod 2=1
  6. 8. 2³=8
  7. 9. 4≥3
  8. 10. 4÷2=2