cast out nines

Verb CEFR C1

Definitions

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

Equivalents

Españolprueba del nueve

Françaispreuve par neuf

DeutschNeunerprobe

3 more languages

Italianoprova del nove

Nederlandsnegenproef

Portuguêsfazer a prova dos nove

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See all C1 English words →

See also

cast out the Devil with Beelzebub cast over cast pearls before swine cast round cast snowballs cast someone's water

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