411 REFERENCE · Wiktionary
10's
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
10s '10s
English
Noun
en noun form 10's
en 10s.
en 1831 Henry Bartlett Maglathlin; Benjamin Greenleaf The complete arithmetic: oral and written 43 http://books.google.com/books?id=19ZGAAAAIAAJ&pg=PA43&dq=%22how+many+10's%22 65. How many 10's in 100? How many 100's in 1000?
Usage notes
The use of an apostrophe (') to indicate plurals of numbers written as digits is not recommended.
See also
en Decades