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Basic arithmetic The most basic functions in Calc are simple arithmetic: Addition, subtraction, multiplication, and division (or, as Alice in Wonderland calls them, Ambition, Distraction, Uglification ...
Constancy of Errors to Basic Facts in the Fundamental Operations in Arithmetic Foster E. Grossnickle and John H. Snyder The Journal of Educational Research , pp. 336-344 (9 pages) ...