mental arithmetic Meaning in the Cambridge English Dictionary
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Meaning of “mental arithmetic” in the English Dictionary

"mental arithmetic" in British English

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mental arithmeticnoun [U]

uk   us  
calculations that you do in ​yourmind, without writing down any ​numbers
(Definition of mental arithmetic from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “mental arithmetic”
in Chinese (Simplified) 心算…
in Chinese (Traditional) 心算…
What is the pronunciation of mental arithmetic?
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