Now here, with an arithmetical exactitude of demonstration, he perceived that Marjorie wasn't.
His wealth increased not in arithmetical but in geometrical progression.
These squares may be formed with numbers that are in arithmetical progression, or that are not in such progression.
There are forces in the world which work, not in an arithmetical, but in a geometrical ratio of increase.
By this machine, which is called a Swan-pan, arithmetical operations are rendered palpable.
You should put this sort of thing into the hands of some arithmetical hireling.
The reader may by now feel rather helpless before the problem of the arrangement of arithmetical subject matter.
These are questions which cannot be solved by arithmetical calculation.
It should not be thought, however, that every exposure on bromide paper must involve an arithmetical calculation.
Society is not merely an arithmetical total, or a collective designation.
mid-13c., arsmetike, from Old French arsmetique (12c.), from Latin arithmetica, from Greek arithmetike (tekhne) "(the) counting (art)," fem. of arithmetikos "of or for reckoning, arithmetical," from arithmos "number, counting, amount," from PIE root *re(i)- "to reason, count" (cf. Old English, Old High German rim "number;" Old Irish rim "number," dorimu "I count;" Latin ritus "religious custom;" see read).
Originally in English also arsmetrik, on folk etymology from Medieval Latin ars metrica; spelling corrected early 16c. Replaced native tælcræft, literally "tell-craft."