Carelesly or Carelessly: How To spell?
The word Carelesly is misspelled against Carelessly, an adverb meaning "In a careless manner."
Carelessly has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings carele & ly which should not be misspelled with single 'S'
Wrong Spelling:  carele-s-ly  Correct Spelling:  carele-ss-ly 
Explore spell check of Carelessly to spell without errors.