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English definition of “arithmetic”

arithmetic

noun [U]    /əˈrɪθ·məˌtɪk/
mathematics the process of making calculations such as adding , multiplying , and dividing by using numbers , or the study of this arithmetical  /ˌeər·əθˈmet̬·ɪ·kəl, ˌær-/ adjective mathematics an arithmetical operation / progression arithmetically  /ˌeər·əθˈmet̬·ɪk·li, ˌær-/ adverb mathematics arithmetically equivalent numbers
(Definition of arithmetic noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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