Meaning of “subtraction” in the English Dictionary

american-english dictionary

"subtraction" in American English

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subtractionnoun [ C/U ]

us /səbˈtræk·ʃən/

mathematics the process of taking one number or amount away from another number or amount:

[ U ] The test involves simple addition and subtraction.

(Definition of “subtraction” from the Cambridge Academic Content Dictionary © Cambridge University Press)