math 4grade easy crosword

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Across
  1. 3. 211x211
  2. 4. acute angle
  3. 8. reflex angle
  4. 11. estimate
  5. 13. less than 180 degrees but more than 90
  6. 14. all toghether
  7. 16. obtusegle
Down
  1. 1. 299*52
  2. 2. 1452*632
  3. 5. 5+785=W
  4. 6. complete angle
  5. 7. addition of all sides
  6. 9. operation we use to compare
  7. 10. 180 degrees
  8. 12. multiple lenght+with
  9. 15. 155*9