Word.ws English Dictionary

cast out nines

cast out nines verb: to apply a procedure for verifying whether an arithmetic operation is probably correct or certainly incorrect using modulo characteristics of the digit 9.

Verb

cast out nines (third-person singular simple present casts out nines, present participle casting out nines, simple past and past participle cast out nines)

  1. To apply a procedure for verifying whether an arithmetic operation is probably correct or certainly incorrect using modulo characteristics of the digit 9.

Forms of cast out nines

third-person singular presentcasts out nines
present participlecasting out nines
past participlecast out nines
pastcast out nines

Questions about cast out nines

What does cast out nines mean?
Cast out nines means to apply a procedure for verifying whether an arithmetic operation is probably correct or certainly incorrect using modulo characteristics of the digit 9.
What part of speech is cast out nines?
Cast out nines is a verb.
What is the past tense of cast out nines?
The past tense of cast out nines is cast out nines.

Words near cast out nines in the dictionary

  1. cast one's net far and wide
  2. cast one's net wide
  3. cast one's net wider
  4. cast one's vote
  5. cast out
  6. cast out nines
  7. cast out the Devil with Beelzebub
  8. cast over
  9. cast pearls before swine
  10. cast round
  11. cast snowballs

Source and license

Adapted from Wiktionary: cast out nines (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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