noun plural Etymology: from the facetiously used phrase reading, 'riting, and 'rithmetic Date: 1828 the fundamentals taught in elementary school, the fundamental skills in a field of endeavor
THREE R'S
Meaning of THREE R'S in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012