Word Work:Prefixs

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Across
  1. 3. school for little kids
  2. 6. write it again
  3. 7. opposite of pack
  4. 9. read it again
  5. 10. not grateful
  6. 13. not clear
Down
  1. 1. not agreeing on something
  2. 2. not safe
  3. 4. not own it
  4. 5. reverse to lock
  5. 7. do the opposite
  6. 8. to heat before
  7. 10. opposite of tie
  8. 11. to group again
  9. 12. remove the plug